21349080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1913}}^1$

素因数の和:1961

約数の個数: 96

約数和(自身を含む): 71660160

約数和(自身を除く): 50311080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 1913, 2232, 2790, 3720, 3826, 5580, 5739, 7652, 9565, 11160, 11478, 15304, 17217, 19130, 22956, 28695, 34434, 38260, 45912, 57390, 59303, 68868, 76520, 86085, 114780, 118606, 137736, 172170, 177909, 229560, 237212, 296515, 344340, 355818, 474424, 533727, 593030, 688680, 711636, 889545, 1067454, 1186060, 1423272, 1779090, 2134908, 2372120, 2668635, 3558180, 4269816, 5337270, 7116360, 10674540, 21349080]

約数ペア:

[(1, 21349080), (2, 10674540), (3, 7116360), (4, 5337270), (5, 4269816), (6, 3558180), (8, 2668635), (9, 2372120), (10, 2134908), (12, 1779090), (15, 1423272), (18, 1186060), (20, 1067454), (24, 889545), (30, 711636), (31, 688680), (36, 593030), (40, 533727), (45, 474424), (60, 355818), (62, 344340), (72, 296515), (90, 237212), (93, 229560), (120, 177909), (124, 172170), (155, 137736), (180, 118606), (186, 114780), (248, 86085), (279, 76520), (310, 68868), (360, 59303), (372, 57390), (465, 45912), (558, 38260), (620, 34434), (744, 28695), (930, 22956), (1116, 19130), (1240, 17217), (1395, 15304), (1860, 11478), (1913, 11160), (2232, 9565), (2790, 7652), (3720, 5739), (3826, 5580)]