2021903905

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{4217}}^1$

素因数の和:4358

約数の個数: 48

約数和(自身を含む): 3000516480

約数和(自身を除く): 978612575

約数列:

[1, 5, 7, 19, 35, 49, 95, 103, 133, 245, 515, 665, 721, 931, 1957, 3605, 4217, 4655, 5047, 9785, 13699, 21085, 25235, 29519, 68495, 80123, 95893, 147595, 206633, 400615, 434351, 479465, 560861, 1033165, 2171755, 2804305, 3040457, 3926027, 8252669, 15202285, 19630135, 21283199, 41263345, 57768683, 106415995, 288843415, 404380781, 2021903905]

約数ペア:

[(1, 2021903905), (5, 404380781), (7, 288843415), (19, 106415995), (35, 57768683), (49, 41263345), (95, 21283199), (103, 19630135), (133, 15202285), (245, 8252669), (515, 3926027), (665, 3040457), (721, 2804305), (931, 2171755), (1957, 1033165), (3605, 560861), (4217, 479465), (4655, 434351), (5047, 400615), (9785, 206633), (13699, 147595), (21085, 95893), (25235, 80123), (29519, 68495)]