18915858

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{353}}^1$

素因数の和:603

約数の個数: 48

約数和(自身を含む): 44455320

約数和(自身を除く): 25539462

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 229, 234, 353, 458, 687, 706, 1059, 1374, 2061, 2118, 2977, 3177, 4122, 4589, 5954, 6354, 8931, 9178, 13767, 17862, 26793, 27534, 41301, 53586, 80837, 82602, 161674, 242511, 485022, 727533, 1050881, 1455066, 2101762, 3152643, 6305286, 9457929, 18915858]

約数ペア:

[(1, 18915858), (2, 9457929), (3, 6305286), (6, 3152643), (9, 2101762), (13, 1455066), (18, 1050881), (26, 727533), (39, 485022), (78, 242511), (117, 161674), (229, 82602), (234, 80837), (353, 53586), (458, 41301), (687, 27534), (706, 26793), (1059, 17862), (1374, 13767), (2061, 9178), (2118, 8931), (2977, 6354), (3177, 5954), (4122, 4589)]