21089969140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2696927}}^1$

素因数の和:2696976

約数の個数: 48

約数和(自身を含む): 48933061632

約数和(自身を除く): 27843092492

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820, 2696927, 5393854, 10787708, 13484635, 26969270, 45847759, 53938540, 62029321, 91695518, 124058642, 183391036, 229238795, 248117284, 310146605, 458477590, 620293210, 916955180, 1054498457, 1240586420, 2108996914, 4217993828, 5272492285, 10544984570, 21089969140]

約数ペア:

[(1, 21089969140), (2, 10544984570), (4, 5272492285), (5, 4217993828), (10, 2108996914), (17, 1240586420), (20, 1054498457), (23, 916955180), (34, 620293210), (46, 458477590), (68, 310146605), (85, 248117284), (92, 229238795), (115, 183391036), (170, 124058642), (230, 91695518), (340, 62029321), (391, 53938540), (460, 45847759), (782, 26969270), (1564, 13484635), (1955, 10787708), (3910, 5393854), (7820, 2696927)]