21940142

素因数分解:

$2^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1709}}^1$

素因数の和:1856

約数の個数: 24

約数和(自身を含む): 38598120

約数和(自身を除く): 16657978

約数列:

[1, 2, 7, 14, 49, 98, 131, 262, 917, 1709, 1834, 3418, 6419, 11963, 12838, 23926, 83741, 167482, 223879, 447758, 1567153, 3134306, 10970071, 21940142]

約数ペア:

[(1, 21940142), (2, 10970071), (7, 3134306), (14, 1567153), (49, 447758), (98, 223879), (131, 167482), (262, 83741), (917, 23926), (1709, 12838), (1834, 11963), (3418, 6419)]