18743958

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 42344016

約数和(自身を除く): 23600058

約数列:

[1, 2, 3, 6, 9, 18, 43, 61, 86, 122, 129, 183, 258, 366, 387, 397, 549, 774, 794, 1098, 1191, 2382, 2623, 3573, 5246, 7146, 7869, 15738, 17071, 23607, 24217, 34142, 47214, 48434, 51213, 72651, 102426, 145302, 153639, 217953, 307278, 435906, 1041331, 2082662, 3123993, 6247986, 9371979, 18743958]

約数ペア:

[(1, 18743958), (2, 9371979), (3, 6247986), (6, 3123993), (9, 2082662), (18, 1041331), (43, 435906), (61, 307278), (86, 217953), (122, 153639), (129, 145302), (183, 102426), (258, 72651), (366, 51213), (387, 48434), (397, 47214), (549, 34142), (774, 24217), (794, 23607), (1098, 17071), (1191, 15738), (2382, 7869), (2623, 7146), (3573, 5246)]