21820960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19483}}^1$

素因数の和:19505

約数の個数: 48

約数和(自身を含む): 58919616

約数和(自身を除く): 37098656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 19483, 38966, 77932, 97415, 136381, 155864, 194830, 272762, 311728, 389660, 545524, 623456, 681905, 779320, 1091048, 1363810, 1558640, 2182096, 2727620, 3117280, 4364192, 5455240, 10910480, 21820960]

約数ペア:

[(1, 21820960), (2, 10910480), (4, 5455240), (5, 4364192), (7, 3117280), (8, 2727620), (10, 2182096), (14, 1558640), (16, 1363810), (20, 1091048), (28, 779320), (32, 681905), (35, 623456), (40, 545524), (56, 389660), (70, 311728), (80, 272762), (112, 194830), (140, 155864), (160, 136381), (224, 97415), (280, 77932), (560, 38966), (1120, 19483)]