20921316

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3271}}^1$

素因数の和:3332

約数の個数: 48

約数和(自身を含む): 53870208

約数和(自身を除く): 32948892

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 246, 492, 533, 1066, 1599, 2132, 3198, 3271, 6396, 6542, 9813, 13084, 19626, 39252, 42523, 85046, 127569, 134111, 170092, 255138, 268222, 402333, 510276, 536444, 804666, 1609332, 1743443, 3486886, 5230329, 6973772, 10460658, 20921316]

約数ペア:

[(1, 20921316), (2, 10460658), (3, 6973772), (4, 5230329), (6, 3486886), (12, 1743443), (13, 1609332), (26, 804666), (39, 536444), (41, 510276), (52, 402333), (78, 268222), (82, 255138), (123, 170092), (156, 134111), (164, 127569), (246, 85046), (492, 42523), (533, 39252), (1066, 19626), (1599, 13084), (2132, 9813), (3198, 6542), (3271, 6396)]