21635554

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:965

約数の個数: 16

約数和(自身を含む): 33213240

約数和(自身を除く): 11577686

約数列:

[1, 2, 53, 106, 401, 509, 802, 1018, 21253, 26977, 42506, 53954, 204109, 408218, 10817777, 21635554]

約数ペア:

[(1, 21635554), (2, 10817777), (53, 408218), (106, 204109), (401, 53954), (509, 42506), (802, 26977), (1018, 21253)]