20917416

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67043}}^1$

素因数の和:67065

約数の個数: 32

約数和(自身を含む): 56316960

約数和(自身を除く): 35399544

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67043, 134086, 201129, 268172, 402258, 536344, 804516, 871559, 1609032, 1743118, 2614677, 3486236, 5229354, 6972472, 10458708, 20917416]

約数ペア:

[(1, 20917416), (2, 10458708), (3, 6972472), (4, 5229354), (6, 3486236), (8, 2614677), (12, 1743118), (13, 1609032), (24, 871559), (26, 804516), (39, 536344), (52, 402258), (78, 268172), (104, 201129), (156, 134086), (312, 67043)]