21092912155

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{593}}^1\times {\mathrm{3089}}^1$

素因数の和:3748

約数の個数: 48

約数和(自身を含む): 30130911360

約数和(自身を除く): 9037999205

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 593, 1645, 2303, 2965, 3089, 4151, 11515, 15445, 20755, 21623, 27871, 29057, 108115, 139355, 145183, 145285, 151361, 195097, 725915, 756805, 975485, 1016281, 1365679, 1831777, 5081405, 6828395, 7113967, 9158885, 12822439, 35569835, 64112195, 86093519, 89757073, 430467595, 448785365, 602654633, 3013273165, 4218582431, 21092912155]

約数ペア:

[(1, 21092912155), (5, 4218582431), (7, 3013273165), (35, 602654633), (47, 448785365), (49, 430467595), (235, 89757073), (245, 86093519), (329, 64112195), (593, 35569835), (1645, 12822439), (2303, 9158885), (2965, 7113967), (3089, 6828395), (4151, 5081405), (11515, 1831777), (15445, 1365679), (20755, 1016281), (21623, 975485), (27871, 756805), (29057, 725915), (108115, 195097), (139355, 151361), (145183, 145285)]