21031810065

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1259767}}^1$

素因数の和:1259838

約数の個数: 48

約数和(自身を含む): 42449142528

約数和(自身を除く): 21417332463

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 53, 63, 105, 159, 265, 315, 371, 477, 795, 1113, 1855, 2385, 3339, 5565, 16695, 1259767, 3779301, 6298835, 8818369, 11337903, 18896505, 26455107, 44091845, 56689515, 66767651, 79365321, 132275535, 200302953, 333838255, 396826605, 467373557, 600908859, 1001514765, 1402120671, 2336867785, 3004544295, 4206362013, 7010603355, 21031810065]

約数ペア:

[(1, 21031810065), (3, 7010603355), (5, 4206362013), (7, 3004544295), (9, 2336867785), (15, 1402120671), (21, 1001514765), (35, 600908859), (45, 467373557), (53, 396826605), (63, 333838255), (105, 200302953), (159, 132275535), (265, 79365321), (315, 66767651), (371, 56689515), (477, 44091845), (795, 26455107), (1113, 18896505), (1855, 11337903), (2385, 8818369), (3339, 6298835), (5565, 3779301), (16695, 1259767)]