18636867

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:587

約数の個数: 24

約数和(自身を含む): 27799200

約数和(自身を除く): 9162333

約数列:

[1, 3, 9, 53, 89, 159, 267, 439, 477, 801, 1317, 3951, 4717, 14151, 23267, 39071, 42453, 69801, 117213, 209403, 351639, 2070763, 6212289, 18636867]

約数ペア:

[(1, 18636867), (3, 6212289), (9, 2070763), (53, 351639), (89, 209403), (159, 117213), (267, 69801), (439, 42453), (477, 39071), (801, 23267), (1317, 14151), (3951, 4717)]