21711609

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1979}}^1$

素因数の和:2061

約数の個数: 24

約数和(自身を含む): 33359040

約数和(自身を除く): 11647431

約数列:

[1, 3, 9, 23, 53, 69, 159, 207, 477, 1219, 1979, 3657, 5937, 10971, 17811, 45517, 104887, 136551, 314661, 409653, 943983, 2412401, 7237203, 21711609]

約数ペア:

[(1, 21711609), (3, 7237203), (9, 2412401), (23, 943983), (53, 409653), (69, 314661), (159, 136551), (207, 104887), (477, 45517), (1219, 17811), (1979, 10971), (3657, 5937)]