20678448

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{61543}}^1$

素因数の和:61561

約数の個数: 40

約数和(自身を含む): 61051648

約数和(自身を除く): 40373200

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 61543, 123086, 184629, 246172, 369258, 430801, 492344, 738516, 861602, 984688, 1292403, 1477032, 1723204, 2584806, 2954064, 3446408, 5169612, 6892816, 10339224, 20678448]

約数ペア:

[(1, 20678448), (2, 10339224), (3, 6892816), (4, 5169612), (6, 3446408), (7, 2954064), (8, 2584806), (12, 1723204), (14, 1477032), (16, 1292403), (21, 984688), (24, 861602), (28, 738516), (42, 492344), (48, 430801), (56, 369258), (84, 246172), (112, 184629), (168, 123086), (336, 61543)]