21151140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5779}}^1$

素因数の和:5852

約数の個数: 48

約数和(自身を含む): 60204480

約数和(自身を除く): 39053340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5779, 11558, 17337, 23116, 28895, 34674, 57790, 69348, 86685, 115580, 173370, 346740, 352519, 705038, 1057557, 1410076, 1762595, 2115114, 3525190, 4230228, 5287785, 7050380, 10575570, 21151140]

約数ペア:

[(1, 21151140), (2, 10575570), (3, 7050380), (4, 5287785), (5, 4230228), (6, 3525190), (10, 2115114), (12, 1762595), (15, 1410076), (20, 1057557), (30, 705038), (60, 352519), (61, 346740), (122, 173370), (183, 115580), (244, 86685), (305, 69348), (366, 57790), (610, 34674), (732, 28895), (915, 23116), (1220, 17337), (1830, 11558), (3660, 5779)]