21479310

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 40728690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 53, 54, 57, 79, 90, 95, 106, 114, 135, 158, 159, 171, 190, 237, 265, 270, 285, 318, 342, 395, 474, 477, 513, 530, 570, 711, 790, 795, 855, 954, 1007, 1026, 1185, 1422, 1431, 1501, 1590, 1710, 2014, 2133, 2370, 2385, 2565, 2862, 3002, 3021, 3555, 4187, 4266, 4503, 4770, 5035, 5130, 6042, 7110, 7155, 7505, 8374, 9006, 9063, 10070, 10665, 12561, 13509, 14310, 15010, 15105, 18126, 20935, 21330, 22515, 25122, 27018, 27189, 30210, 37683, 40527, 41870, 45030, 45315, 54378, 62805, 67545, 75366, 79553, 81054, 90630, 113049, 125610, 135090, 135945, 159106, 188415, 202635, 226098, 238659, 271890, 376830, 397765, 405270, 477318, 565245, 715977, 795530, 1130490, 1193295, 1431954, 2147931, 2386590, 3579885, 4295862, 7159770, 10739655, 21479310]

約数ペア:

[(1, 21479310), (2, 10739655), (3, 7159770), (5, 4295862), (6, 3579885), (9, 2386590), (10, 2147931), (15, 1431954), (18, 1193295), (19, 1130490), (27, 795530), (30, 715977), (38, 565245), (45, 477318), (53, 405270), (54, 397765), (57, 376830), (79, 271890), (90, 238659), (95, 226098), (106, 202635), (114, 188415), (135, 159106), (158, 135945), (159, 135090), (171, 125610), (190, 113049), (237, 90630), (265, 81054), (270, 79553), (285, 75366), (318, 67545), (342, 62805), (395, 54378), (474, 45315), (477, 45030), (513, 41870), (530, 40527), (570, 37683), (711, 30210), (790, 27189), (795, 27018), (855, 25122), (954, 22515), (1007, 21330), (1026, 20935), (1185, 18126), (1422, 15105), (1431, 15010), (1501, 14310), (1590, 13509), (1710, 12561), (2014, 10665), (2133, 10070), (2370, 9063), (2385, 9006), (2565, 8374), (2862, 7505), (3002, 7155), (3021, 7110), (3555, 6042), (4187, 5130), (4266, 5035), (4503, 4770)]