18691335

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 16689465

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 89, 117, 195, 267, 359, 445, 585, 801, 1077, 1157, 1335, 1795, 3231, 3471, 4005, 4667, 5385, 5785, 10413, 14001, 16155, 17355, 23335, 31951, 42003, 52065, 70005, 95853, 159755, 210015, 287559, 415363, 479265, 1246089, 1437795, 2076815, 3738267, 6230445, 18691335]

約数ペア:

[(1, 18691335), (3, 6230445), (5, 3738267), (9, 2076815), (13, 1437795), (15, 1246089), (39, 479265), (45, 415363), (65, 287559), (89, 210015), (117, 159755), (195, 95853), (267, 70005), (359, 52065), (445, 42003), (585, 31951), (801, 23335), (1077, 17355), (1157, 16155), (1335, 14001), (1795, 10413), (3231, 5785), (3471, 5385), (4005, 4667)]