21864720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:289

約数の個数: 160

約数和(自身を含む): 75209472

約数和(自身を除く): 53344752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 23, 24, 30, 34, 40, 46, 48, 51, 60, 68, 69, 80, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 233, 240, 255, 272, 276, 340, 345, 368, 391, 408, 460, 466, 510, 552, 680, 690, 699, 782, 816, 920, 932, 1020, 1104, 1165, 1173, 1360, 1380, 1398, 1564, 1840, 1864, 1955, 2040, 2330, 2346, 2760, 2796, 3128, 3495, 3728, 3910, 3961, 4080, 4660, 4692, 5359, 5520, 5592, 5865, 6256, 6990, 7820, 7922, 9320, 9384, 10718, 11184, 11730, 11883, 13980, 15640, 15844, 16077, 18640, 18768, 19805, 21436, 23460, 23766, 26795, 27960, 31280, 31688, 32154, 39610, 42872, 46920, 47532, 53590, 55920, 59415, 63376, 64308, 79220, 80385, 85744, 91103, 93840, 95064, 107180, 118830, 128616, 158440, 160770, 182206, 190128, 214360, 237660, 257232, 273309, 316880, 321540, 364412, 428720, 455515, 475320, 546618, 643080, 728824, 911030, 950640, 1093236, 1286160, 1366545, 1457648, 1822060, 2186472, 2733090, 3644120, 4372944, 5466180, 7288240, 10932360, 21864720]

約数ペア:

[(1, 21864720), (2, 10932360), (3, 7288240), (4, 5466180), (5, 4372944), (6, 3644120), (8, 2733090), (10, 2186472), (12, 1822060), (15, 1457648), (16, 1366545), (17, 1286160), (20, 1093236), (23, 950640), (24, 911030), (30, 728824), (34, 643080), (40, 546618), (46, 475320), (48, 455515), (51, 428720), (60, 364412), (68, 321540), (69, 316880), (80, 273309), (85, 257232), (92, 237660), (102, 214360), (115, 190128), (120, 182206), (136, 160770), (138, 158440), (170, 128616), (184, 118830), (204, 107180), (230, 95064), (233, 93840), (240, 91103), (255, 85744), (272, 80385), (276, 79220), (340, 64308), (345, 63376), (368, 59415), (391, 55920), (408, 53590), (460, 47532), (466, 46920), (510, 42872), (552, 39610), (680, 32154), (690, 31688), (699, 31280), (782, 27960), (816, 26795), (920, 23766), (932, 23460), (1020, 21436), (1104, 19805), (1165, 18768), (1173, 18640), (1360, 16077), (1380, 15844), (1398, 15640), (1564, 13980), (1840, 11883), (1864, 11730), (1955, 11184), (2040, 10718), (2330, 9384), (2346, 9320), (2760, 7922), (2796, 7820), (3128, 6990), (3495, 6256), (3728, 5865), (3910, 5592), (3961, 5520), (4080, 5359), (4660, 4692)]