20698356

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1031}}^1$

素因数の和:1284

約数の個数: 48

約数和(自身を含む): 55480320

約数和(自身を除く): 34781964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 239, 478, 717, 956, 1031, 1434, 1673, 2062, 2868, 3093, 3346, 4124, 5019, 6186, 6692, 7217, 10038, 12372, 14434, 20076, 21651, 28868, 43302, 86604, 246409, 492818, 739227, 985636, 1478454, 1724863, 2956908, 3449726, 5174589, 6899452, 10349178, 20698356]

約数ペア:

[(1, 20698356), (2, 10349178), (3, 6899452), (4, 5174589), (6, 3449726), (7, 2956908), (12, 1724863), (14, 1478454), (21, 985636), (28, 739227), (42, 492818), (84, 246409), (239, 86604), (478, 43302), (717, 28868), (956, 21651), (1031, 20076), (1434, 14434), (1673, 12372), (2062, 10038), (2868, 7217), (3093, 6692), (3346, 6186), (4124, 5019)]