20161993719

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{44963}}^1$

素因数の和:45267

約数の個数: 32

約数和(自身を含む): 31148181504

約数和(自身を除く): 10986187785

約数列:

[1, 3, 7, 21, 131, 163, 393, 489, 917, 1141, 2751, 3423, 21353, 44963, 64059, 134889, 149471, 314741, 448413, 944223, 5890153, 7328969, 17670459, 21986907, 41231071, 51302783, 123693213, 153908349, 960094939, 2880284817, 6720664573, 20161993719]

約数ペア:

[(1, 20161993719), (3, 6720664573), (7, 2880284817), (21, 960094939), (131, 153908349), (163, 123693213), (393, 51302783), (489, 41231071), (917, 21986907), (1141, 17670459), (2751, 7328969), (3423, 5890153), (21353, 944223), (44963, 448413), (64059, 314741), (134889, 149471)]