21738120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1693}}^1$

素因数の和:1814

約数の個数: 64

約数和(自身を含む): 65862720

約数和(自身を除く): 44124600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 1693, 2140, 2568, 3210, 3386, 4280, 5079, 6420, 6772, 8465, 10158, 12840, 13544, 16930, 20316, 25395, 33860, 40632, 50790, 67720, 101580, 181151, 203160, 362302, 543453, 724604, 905755, 1086906, 1449208, 1811510, 2173812, 2717265, 3623020, 4347624, 5434530, 7246040, 10869060, 21738120]

約数ペア:

[(1, 21738120), (2, 10869060), (3, 7246040), (4, 5434530), (5, 4347624), (6, 3623020), (8, 2717265), (10, 2173812), (12, 1811510), (15, 1449208), (20, 1086906), (24, 905755), (30, 724604), (40, 543453), (60, 362302), (107, 203160), (120, 181151), (214, 101580), (321, 67720), (428, 50790), (535, 40632), (642, 33860), (856, 25395), (1070, 20316), (1284, 16930), (1605, 13544), (1693, 12840), (2140, 10158), (2568, 8465), (3210, 6772), (3386, 6420), (4280, 5079)]