18680493948

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{81931991}}^1$

素因数の和:81932017

約数の個数: 24

約数和(自身を含む): 45881915520

約数和(自身を除く): 27201421572

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 81931991, 163863982, 245795973, 327727964, 491591946, 983183892, 1556707829, 3113415658, 4670123487, 6226831316, 9340246974, 18680493948]

約数ペア:

[(1, 18680493948), (2, 9340246974), (3, 6226831316), (4, 4670123487), (6, 3113415658), (12, 1556707829), (19, 983183892), (38, 491591946), (57, 327727964), (76, 245795973), (114, 163863982), (228, 81931991)]