21723170

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1031}}^1$

素因数の和:1095

約数の個数: 48

約数和(自身を含む): 46588608

約数和(自身を除く): 24865438

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 98, 215, 245, 301, 430, 490, 602, 1031, 1505, 2062, 2107, 3010, 4214, 5155, 7217, 10310, 10535, 14434, 21070, 36085, 44333, 50519, 72170, 88666, 101038, 221665, 252595, 310331, 443330, 505190, 620662, 1551655, 2172317, 3103310, 4344634, 10861585, 21723170]

約数ペア:

[(1, 21723170), (2, 10861585), (5, 4344634), (7, 3103310), (10, 2172317), (14, 1551655), (35, 620662), (43, 505190), (49, 443330), (70, 310331), (86, 252595), (98, 221665), (215, 101038), (245, 88666), (301, 72170), (430, 50519), (490, 44333), (602, 36085), (1031, 21070), (1505, 14434), (2062, 10535), (2107, 10310), (3010, 7217), (4214, 5155)]