21435260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:507

約数の個数: 96

約数和(自身を含む): 58060800

約数和(自身を除く): 36625540

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 341, 385, 434, 449, 620, 682, 770, 868, 898, 1085, 1364, 1540, 1705, 1796, 2170, 2245, 2387, 3143, 3410, 4340, 4490, 4774, 4939, 6286, 6820, 8980, 9548, 9878, 11935, 12572, 13919, 15715, 19756, 23870, 24695, 27838, 31430, 34573, 47740, 49390, 55676, 62860, 69146, 69595, 97433, 98780, 138292, 139190, 153109, 172865, 194866, 278380, 306218, 345730, 389732, 487165, 612436, 691460, 765545, 974330, 1071763, 1531090, 1948660, 2143526, 3062180, 4287052, 5358815, 10717630, 21435260]

約数ペア:

[(1, 21435260), (2, 10717630), (4, 5358815), (5, 4287052), (7, 3062180), (10, 2143526), (11, 1948660), (14, 1531090), (20, 1071763), (22, 974330), (28, 765545), (31, 691460), (35, 612436), (44, 487165), (55, 389732), (62, 345730), (70, 306218), (77, 278380), (110, 194866), (124, 172865), (140, 153109), (154, 139190), (155, 138292), (217, 98780), (220, 97433), (308, 69595), (310, 69146), (341, 62860), (385, 55676), (434, 49390), (449, 47740), (620, 34573), (682, 31430), (770, 27838), (868, 24695), (898, 23870), (1085, 19756), (1364, 15715), (1540, 13919), (1705, 12572), (1796, 11935), (2170, 9878), (2245, 9548), (2387, 8980), (3143, 6820), (3410, 6286), (4340, 4939), (4490, 4774)]