21412690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9689}}^1$

素因数の和:9726

約数の個数: 32

約数和(自身を含む): 43953840

約数和(自身を除く): 22541150

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9689, 19378, 48445, 96890, 125957, 164713, 251914, 329426, 629785, 823565, 1259570, 1647130, 2141269, 4282538, 10706345, 21412690]

約数ペア:

[(1, 21412690), (2, 10706345), (5, 4282538), (10, 2141269), (13, 1647130), (17, 1259570), (26, 823565), (34, 629785), (65, 329426), (85, 251914), (130, 164713), (170, 125957), (221, 96890), (442, 48445), (1105, 19378), (2210, 9689)]