20871288

素因数分解:

$2^3\times 3^2\times {\mathrm{227}}^1\times {\mathrm{1277}}^1$

素因数の和:1516

約数の個数: 48

約数和(自身を含む): 56819880

約数和(自身を除く): 35948592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 227, 454, 681, 908, 1277, 1362, 1816, 2043, 2554, 2724, 3831, 4086, 5108, 5448, 7662, 8172, 10216, 11493, 15324, 16344, 22986, 30648, 45972, 91944, 289879, 579758, 869637, 1159516, 1739274, 2319032, 2608911, 3478548, 5217822, 6957096, 10435644, 20871288]

約数ペア:

[(1, 20871288), (2, 10435644), (3, 6957096), (4, 5217822), (6, 3478548), (8, 2608911), (9, 2319032), (12, 1739274), (18, 1159516), (24, 869637), (36, 579758), (72, 289879), (227, 91944), (454, 45972), (681, 30648), (908, 22986), (1277, 16344), (1362, 15324), (1816, 11493), (2043, 10216), (2554, 8172), (2724, 7662), (3831, 5448), (4086, 5108)]