21576798

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 48727536

約数和(自身を除く): 27150738

約数列:

[1, 2, 3, 6, 9, 18, 43, 61, 86, 122, 129, 183, 258, 366, 387, 457, 549, 774, 914, 1098, 1371, 2623, 2742, 4113, 5246, 7869, 8226, 15738, 19651, 23607, 27877, 39302, 47214, 55754, 58953, 83631, 117906, 167262, 176859, 250893, 353718, 501786, 1198711, 2397422, 3596133, 7192266, 10788399, 21576798]

約数ペア:

[(1, 21576798), (2, 10788399), (3, 7192266), (6, 3596133), (9, 2397422), (18, 1198711), (43, 501786), (61, 353718), (86, 250893), (122, 176859), (129, 167262), (183, 117906), (258, 83631), (366, 58953), (387, 55754), (457, 47214), (549, 39302), (774, 27877), (914, 23607), (1098, 19651), (1371, 15738), (2623, 8226), (2742, 7869), (4113, 5246)]