21053928

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{17903}}^1$

素因数の和:17926

約数の個数: 48

約数和(自身を含む): 61231680

約数和(自身を除く): 40177752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 392, 588, 1176, 17903, 35806, 53709, 71612, 107418, 125321, 143224, 214836, 250642, 375963, 429672, 501284, 751926, 877247, 1002568, 1503852, 1754494, 2631741, 3007704, 3508988, 5263482, 7017976, 10526964, 21053928]

約数ペア:

[(1, 21053928), (2, 10526964), (3, 7017976), (4, 5263482), (6, 3508988), (7, 3007704), (8, 2631741), (12, 1754494), (14, 1503852), (21, 1002568), (24, 877247), (28, 751926), (42, 501284), (49, 429672), (56, 375963), (84, 250642), (98, 214836), (147, 143224), (168, 125321), (196, 107418), (294, 71612), (392, 53709), (588, 35806), (1176, 17903)]