18619816

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 35719200

約数和(自身を除く): 17099384

約数列:

[1, 2, 4, 8, 109, 131, 163, 218, 262, 326, 436, 524, 652, 872, 1048, 1304, 14279, 17767, 21353, 28558, 35534, 42706, 57116, 71068, 85412, 114232, 142136, 170824, 2327477, 4654954, 9309908, 18619816]

約数ペア:

[(1, 18619816), (2, 9309908), (4, 4654954), (8, 2327477), (109, 170824), (131, 142136), (163, 114232), (218, 85412), (262, 71068), (326, 57116), (436, 42706), (524, 35534), (652, 28558), (872, 21353), (1048, 17767), (1304, 14279)]