218123927

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 268588032

約数和(自身を除く): 50464105

約数列:

[1, 7, 23, 67, 73, 161, 277, 469, 511, 1541, 1679, 1939, 4891, 6371, 10787, 11753, 18559, 20221, 34237, 44597, 112493, 129913, 141547, 426857, 465083, 787451, 1354807, 2987999, 3255581, 9483649, 31160561, 218123927]

約数ペア:

[(1, 218123927), (7, 31160561), (23, 9483649), (67, 3255581), (73, 2987999), (161, 1354807), (277, 787451), (469, 465083), (511, 426857), (1541, 141547), (1679, 129913), (1939, 112493), (4891, 44597), (6371, 34237), (10787, 20221), (11753, 18559)]