21855540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3061}}^1$

素因数の和:3097

約数の個数: 96

約数和(自身を含む): 74075904

約数和(自身を除く): 52220364

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 3061, 3570, 6122, 7140, 9183, 12244, 15305, 18366, 21427, 30610, 36732, 42854, 45915, 52037, 61220, 64281, 85708, 91830, 104074, 107135, 128562, 156111, 183660, 208148, 214270, 257124, 260185, 312222, 321405, 364259, 428540, 520370, 624444, 642810, 728518, 780555, 1040740, 1092777, 1285620, 1457036, 1561110, 1821295, 2185554, 3122220, 3642590, 4371108, 5463885, 7285180, 10927770, 21855540]

約数ペア:

[(1, 21855540), (2, 10927770), (3, 7285180), (4, 5463885), (5, 4371108), (6, 3642590), (7, 3122220), (10, 2185554), (12, 1821295), (14, 1561110), (15, 1457036), (17, 1285620), (20, 1092777), (21, 1040740), (28, 780555), (30, 728518), (34, 642810), (35, 624444), (42, 520370), (51, 428540), (60, 364259), (68, 321405), (70, 312222), (84, 260185), (85, 257124), (102, 214270), (105, 208148), (119, 183660), (140, 156111), (170, 128562), (204, 107135), (210, 104074), (238, 91830), (255, 85708), (340, 64281), (357, 61220), (420, 52037), (476, 45915), (510, 42854), (595, 36732), (714, 30610), (1020, 21427), (1190, 18366), (1428, 15305), (1785, 12244), (2380, 9183), (3061, 7140), (3570, 6122)]