21442260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2687}}^1$

素因数の和:2725

約数の個数: 96

約数和(自身を含む): 72253440

約数和(自身を除く): 50811180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 2687, 3990, 5374, 7980, 8061, 10748, 13435, 16122, 18809, 26870, 32244, 37618, 40305, 51053, 53740, 56427, 75236, 80610, 94045, 102106, 112854, 153159, 161220, 188090, 204212, 225708, 255265, 282135, 306318, 357371, 376180, 510530, 564270, 612636, 714742, 765795, 1021060, 1072113, 1128540, 1429484, 1531590, 1786855, 2144226, 3063180, 3573710, 4288452, 5360565, 7147420, 10721130, 21442260]

約数ペア:

[(1, 21442260), (2, 10721130), (3, 7147420), (4, 5360565), (5, 4288452), (6, 3573710), (7, 3063180), (10, 2144226), (12, 1786855), (14, 1531590), (15, 1429484), (19, 1128540), (20, 1072113), (21, 1021060), (28, 765795), (30, 714742), (35, 612636), (38, 564270), (42, 510530), (57, 376180), (60, 357371), (70, 306318), (76, 282135), (84, 255265), (95, 225708), (105, 204212), (114, 188090), (133, 161220), (140, 153159), (190, 112854), (210, 102106), (228, 94045), (266, 80610), (285, 75236), (380, 56427), (399, 53740), (420, 51053), (532, 40305), (570, 37618), (665, 32244), (798, 26870), (1140, 18809), (1330, 16122), (1596, 13435), (1995, 10748), (2660, 8061), (2687, 7980), (3990, 5374)]