21121170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2339}}^1$

素因数の和:2399

約数の個数: 64

約数和(自身を含む): 59304960

約数和(自身を除く): 38183790

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 2339, 3010, 4515, 4678, 7017, 9030, 11695, 14034, 16373, 23390, 32746, 35085, 49119, 70170, 81865, 98238, 100577, 163730, 201154, 245595, 301731, 491190, 502885, 603462, 704039, 1005770, 1408078, 1508655, 2112117, 3017310, 3520195, 4224234, 7040390, 10560585, 21121170]

約数ペア:

[(1, 21121170), (2, 10560585), (3, 7040390), (5, 4224234), (6, 3520195), (7, 3017310), (10, 2112117), (14, 1508655), (15, 1408078), (21, 1005770), (30, 704039), (35, 603462), (42, 502885), (43, 491190), (70, 301731), (86, 245595), (105, 201154), (129, 163730), (210, 100577), (215, 98238), (258, 81865), (301, 70170), (430, 49119), (602, 35085), (645, 32746), (903, 23390), (1290, 16373), (1505, 14034), (1806, 11695), (2339, 9030), (3010, 7017), (4515, 4678)]