21054982

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 35888832

約数和(自身を除く): 14833850

約数列:

[1, 2, 13, 23, 26, 46, 137, 257, 274, 299, 514, 598, 1781, 3151, 3341, 3562, 5911, 6302, 6682, 11822, 35209, 40963, 70418, 76843, 81926, 153686, 457717, 809807, 915434, 1619614, 10527491, 21054982]

約数ペア:

[(1, 21054982), (2, 10527491), (13, 1619614), (23, 915434), (26, 809807), (46, 457717), (137, 153686), (257, 81926), (274, 76843), (299, 70418), (514, 40963), (598, 35209), (1781, 11822), (3151, 6682), (3341, 6302), (3562, 5911)]