21097964

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{761}}^1$

素因数の和:1033

約数の個数: 24

約数和(自身を含む): 38404800

約数和(自身を除く): 17306836

約数列:

[1, 2, 4, 29, 58, 116, 239, 478, 761, 956, 1522, 3044, 6931, 13862, 22069, 27724, 44138, 88276, 181879, 363758, 727516, 5274491, 10548982, 21097964]

約数ペア:

[(1, 21097964), (2, 10548982), (4, 5274491), (29, 727516), (58, 363758), (116, 181879), (239, 88276), (478, 44138), (761, 27724), (956, 22069), (1522, 13862), (3044, 6931)]