18870111

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1453}}^1$

素因数の和:1512

約数の個数: 32

約数和(自身を含む): 30941120

約数和(自身を除く): 12071009

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 999, 1443, 1453, 4329, 4359, 12987, 13077, 18889, 39231, 53761, 56667, 161283, 170001, 483849, 510003, 698893, 1451547, 2096679, 6290037, 18870111]

約数ペア:

[(1, 18870111), (3, 6290037), (9, 2096679), (13, 1451547), (27, 698893), (37, 510003), (39, 483849), (111, 170001), (117, 161283), (333, 56667), (351, 53761), (481, 39231), (999, 18889), (1443, 13077), (1453, 12987), (4329, 4359)]