21072708

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{6577}}^1$

素因数の和:6676

約数の個数: 36

約数和(自身を含む): 53873820

約数和(自身を除く): 32801112

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 178, 267, 356, 534, 801, 1068, 1602, 3204, 6577, 13154, 19731, 26308, 39462, 59193, 78924, 118386, 236772, 585353, 1170706, 1756059, 2341412, 3512118, 5268177, 7024236, 10536354, 21072708]

約数ペア:

[(1, 21072708), (2, 10536354), (3, 7024236), (4, 5268177), (6, 3512118), (9, 2341412), (12, 1756059), (18, 1170706), (36, 585353), (89, 236772), (178, 118386), (267, 78924), (356, 59193), (534, 39462), (801, 26308), (1068, 19731), (1602, 13154), (3204, 6577)]