17965948

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 43034544

約数和(自身を除く): 25068596

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 641, 1001, 1078, 1274, 1282, 2002, 2156, 2548, 2564, 4004, 4487, 7007, 7051, 8333, 8974, 14014, 14102, 16666, 17948, 28028, 28204, 31409, 33332, 49357, 58331, 62818, 91663, 98714, 116662, 125636, 183326, 197428, 233324, 345499, 366652, 408317, 641641, 690998, 816634, 1283282, 1381996, 1633268, 2566564, 4491487, 8982974, 17965948]

約数ペア:

[(1, 17965948), (2, 8982974), (4, 4491487), (7, 2566564), (11, 1633268), (13, 1381996), (14, 1283282), (22, 816634), (26, 690998), (28, 641641), (44, 408317), (49, 366652), (52, 345499), (77, 233324), (91, 197428), (98, 183326), (143, 125636), (154, 116662), (182, 98714), (196, 91663), (286, 62818), (308, 58331), (364, 49357), (539, 33332), (572, 31409), (637, 28204), (641, 28028), (1001, 17948), (1078, 16666), (1274, 14102), (1282, 14014), (2002, 8974), (2156, 8333), (2548, 7051), (2564, 7007), (4004, 4487)]