217698890

素因数分解:

$2^1\times 5^1\times {\mathrm{233}}^2\times {\mathrm{401}}^1$

素因数の和:874

約数の個数: 24

約数和(自身を含む): 394528428

約数和(自身を除く): 176829538

約数列:

[1, 2, 5, 10, 233, 401, 466, 802, 1165, 2005, 2330, 4010, 54289, 93433, 108578, 186866, 271445, 467165, 542890, 934330, 21769889, 43539778, 108849445, 217698890]

約数ペア:

[(1, 217698890), (2, 108849445), (5, 43539778), (10, 21769889), (233, 934330), (401, 542890), (466, 467165), (802, 271445), (1165, 186866), (2005, 108578), (2330, 93433), (4010, 54289)]