20964210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4451}}^1$

素因数の和:4618

約数の個数: 32

約数和(自身を含む): 50645952

約数和(自身を除く): 29681742

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 157, 314, 471, 785, 942, 1570, 2355, 4451, 4710, 8902, 13353, 22255, 26706, 44510, 66765, 133530, 698807, 1397614, 2096421, 3494035, 4192842, 6988070, 10482105, 20964210]

約数ペア:

[(1, 20964210), (2, 10482105), (3, 6988070), (5, 4192842), (6, 3494035), (10, 2096421), (15, 1397614), (30, 698807), (157, 133530), (314, 66765), (471, 44510), (785, 26706), (942, 22255), (1570, 13353), (2355, 8902), (4451, 4710)]