21721167410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{823}}^1\times {\mathrm{155251}}^1$

素因数の和:156098

約数の個数: 32

約数和(自身を含む): 41448557952

約数和(自身を除く): 19727390542

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 823, 1646, 4115, 8230, 13991, 27982, 69955, 139910, 155251, 310502, 776255, 1552510, 2639267, 5278534, 13196335, 26392670, 127771573, 255543146, 638857865, 1277715730, 2172116741, 4344233482, 10860583705, 21721167410]

約数ペア:

[(1, 21721167410), (2, 10860583705), (5, 4344233482), (10, 2172116741), (17, 1277715730), (34, 638857865), (85, 255543146), (170, 127771573), (823, 26392670), (1646, 13196335), (4115, 5278534), (8230, 2639267), (13991, 1552510), (27982, 776255), (69955, 310502), (139910, 155251)]