21282540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7547}}^1$

素因数の和:7606

約数の個数: 48

約数和(自身を含む): 60867072

約数和(自身を除く): 39584532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7547, 15094, 22641, 30188, 37735, 45282, 75470, 90564, 113205, 150940, 226410, 354709, 452820, 709418, 1064127, 1418836, 1773545, 2128254, 3547090, 4256508, 5320635, 7094180, 10641270, 21282540]

約数ペア:

[(1, 21282540), (2, 10641270), (3, 7094180), (4, 5320635), (5, 4256508), (6, 3547090), (10, 2128254), (12, 1773545), (15, 1418836), (20, 1064127), (30, 709418), (47, 452820), (60, 354709), (94, 226410), (141, 150940), (188, 113205), (235, 90564), (282, 75470), (470, 45282), (564, 37735), (705, 30188), (940, 22641), (1410, 15094), (2820, 7547)]