21765830

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1181}}^1$

素因数の和:1304

約数の個数: 32

約数和(自身を含む): 41700960

約数和(自身を除く): 19935130

約数列:

[1, 2, 5, 10, 19, 38, 95, 97, 190, 194, 485, 970, 1181, 1843, 2362, 3686, 5905, 9215, 11810, 18430, 22439, 44878, 112195, 114557, 224390, 229114, 572785, 1145570, 2176583, 4353166, 10882915, 21765830]

約数ペア:

[(1, 21765830), (2, 10882915), (5, 4353166), (10, 2176583), (19, 1145570), (38, 572785), (95, 229114), (97, 224390), (190, 114557), (194, 112195), (485, 44878), (970, 22439), (1181, 18430), (1843, 11810), (2362, 9215), (3686, 5905)]