17967496420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21911581}}^1$

素因数の和:21911631

約数の個数: 24

約数和(自身を含む): 38652030648

約数和(自身を除く): 20684534228

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 21911581, 43823162, 87646324, 109557905, 219115810, 438231620, 898374821, 1796749642, 3593499284, 4491874105, 8983748210, 17967496420]

約数ペア:

[(1, 17967496420), (2, 8983748210), (4, 4491874105), (5, 3593499284), (10, 1796749642), (20, 898374821), (41, 438231620), (82, 219115810), (164, 109557905), (205, 87646324), (410, 43823162), (820, 21911581)]