21000983992

素因数分解:

$2^3\times {\mathrm{283}}^1\times {\mathrm{2129}}^1\times {\mathrm{4357}}^1$

素因数の和:6775

約数の個数: 32

約数和(自身を含む): 39543620400

約数和(自身を除く): 18542636408

約数列:

[1, 2, 4, 8, 283, 566, 1132, 2129, 2264, 4258, 4357, 8516, 8714, 17032, 17428, 34856, 602507, 1205014, 1233031, 2410028, 2466062, 4820056, 4932124, 9276053, 9864248, 18552106, 37104212, 74208424, 2625122999, 5250245998, 10500491996, 21000983992]

約数ペア:

[(1, 21000983992), (2, 10500491996), (4, 5250245998), (8, 2625122999), (283, 74208424), (566, 37104212), (1132, 18552106), (2129, 9864248), (2264, 9276053), (4258, 4932124), (4357, 4820056), (8516, 2466062), (8714, 2410028), (17032, 1233031), (17428, 1205014), (34856, 602507)]