1998593569

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 2364293120

約数和(自身を除く): 365699551

約数列:

[1, 7, 61, 139, 151, 223, 427, 973, 1057, 1561, 8479, 9211, 13603, 20989, 30997, 33673, 59353, 64477, 95221, 146923, 216979, 235711, 1280329, 1890817, 2054053, 4680547, 8962303, 13235719, 14378371, 32763829, 285513367, 1998593569]

約数ペア:

[(1, 1998593569), (7, 285513367), (61, 32763829), (139, 14378371), (151, 13235719), (223, 8962303), (427, 4680547), (973, 2054053), (1057, 1890817), (1561, 1280329), (8479, 235711), (9211, 216979), (13603, 146923), (20989, 95221), (30997, 64477), (33673, 59353)]