18815784

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{4639}}^1$

素因数の和:4674

約数の個数: 48

約数和(自身を含む): 50947200

約数和(自身を除く): 32131416

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 169, 312, 338, 507, 676, 1014, 1352, 2028, 4056, 4639, 9278, 13917, 18556, 27834, 37112, 55668, 60307, 111336, 120614, 180921, 241228, 361842, 482456, 723684, 783991, 1447368, 1567982, 2351973, 3135964, 4703946, 6271928, 9407892, 18815784]

約数ペア:

[(1, 18815784), (2, 9407892), (3, 6271928), (4, 4703946), (6, 3135964), (8, 2351973), (12, 1567982), (13, 1447368), (24, 783991), (26, 723684), (39, 482456), (52, 361842), (78, 241228), (104, 180921), (156, 120614), (169, 111336), (312, 60307), (338, 55668), (507, 37112), (676, 27834), (1014, 18556), (1352, 13917), (2028, 9278), (4056, 4639)]