18657958

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 31692672

約数和(自身を除く): 13034714

約数列:

[1, 2, 11, 22, 43, 86, 121, 163, 242, 326, 473, 946, 1331, 1793, 2662, 3586, 5203, 7009, 10406, 14018, 19723, 39446, 57233, 77099, 114466, 154198, 216953, 433906, 848089, 1696178, 9328979, 18657958]

約数ペア:

[(1, 18657958), (2, 9328979), (11, 1696178), (22, 848089), (43, 433906), (86, 216953), (121, 154198), (163, 114466), (242, 77099), (326, 57233), (473, 39446), (946, 19723), (1331, 14018), (1793, 10406), (2662, 7009), (3586, 5203)]