21082960281

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1\times {\mathrm{337}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 30502158336

約数和(自身を除く): 9419198055

約数列:

[1, 3, 23, 47, 69, 101, 141, 191, 303, 337, 573, 1011, 1081, 2323, 3243, 4393, 4747, 6969, 7751, 8977, 13179, 14241, 15839, 19291, 23253, 26931, 34037, 47517, 57873, 64367, 102111, 109181, 193101, 206471, 327543, 364297, 443693, 619413, 782851, 906677, 1092891, 1331079, 1480441, 1599739, 2348553, 2720031, 3025249, 4441323, 4799217, 6501067, 9075747, 19503201, 20853571, 36793997, 62560713, 69580727, 110381991, 149524541, 208742181, 305550149, 448573623, 916650447, 7027653427, 21082960281]

約数ペア:

[(1, 21082960281), (3, 7027653427), (23, 916650447), (47, 448573623), (69, 305550149), (101, 208742181), (141, 149524541), (191, 110381991), (303, 69580727), (337, 62560713), (573, 36793997), (1011, 20853571), (1081, 19503201), (2323, 9075747), (3243, 6501067), (4393, 4799217), (4747, 4441323), (6969, 3025249), (7751, 2720031), (8977, 2348553), (13179, 1599739), (14241, 1480441), (15839, 1331079), (19291, 1092891), (23253, 906677), (26931, 782851), (34037, 619413), (47517, 443693), (57873, 364297), (64367, 327543), (102111, 206471), (109181, 193101)]