217640631

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1483}}^1$

素因数の和:1623

約数の個数: 32

約数和(自身を含む): 323108352

約数和(自身を除く): 105467721

約数列:

[1, 3, 13, 39, 53, 71, 159, 213, 689, 923, 1483, 2067, 2769, 3763, 4449, 11289, 19279, 48919, 57837, 78599, 105293, 146757, 235797, 315879, 1021787, 1368809, 3065361, 4106427, 5580529, 16741587, 72546877, 217640631]

約数ペア:

[(1, 217640631), (3, 72546877), (13, 16741587), (39, 5580529), (53, 4106427), (71, 3065361), (159, 1368809), (213, 1021787), (689, 315879), (923, 235797), (1483, 146757), (2067, 105293), (2769, 78599), (3763, 57837), (4449, 48919), (11289, 19279)]