18691318

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:252

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 11790602

約数列:

[1, 2, 23, 46, 59, 71, 97, 118, 142, 194, 1357, 1633, 2231, 2714, 3266, 4189, 4462, 5723, 6887, 8378, 11446, 13774, 96347, 131629, 158401, 192694, 263258, 316802, 406333, 812666, 9345659, 18691318]

約数ペア:

[(1, 18691318), (2, 9345659), (23, 812666), (46, 406333), (59, 316802), (71, 263258), (97, 192694), (118, 158401), (142, 131629), (194, 96347), (1357, 13774), (1633, 11446), (2231, 8378), (2714, 6887), (3266, 5723), (4189, 4462)]