21439020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4523}}^1$

素因数の和:4614

約数の個数: 48

約数和(自身を含む): 60802560

約数和(自身を除く): 39363540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4523, 4740, 9046, 13569, 18092, 22615, 27138, 45230, 54276, 67845, 90460, 135690, 271380, 357317, 714634, 1071951, 1429268, 1786585, 2143902, 3573170, 4287804, 5359755, 7146340, 10719510, 21439020]

約数ペア:

[(1, 21439020), (2, 10719510), (3, 7146340), (4, 5359755), (5, 4287804), (6, 3573170), (10, 2143902), (12, 1786585), (15, 1429268), (20, 1071951), (30, 714634), (60, 357317), (79, 271380), (158, 135690), (237, 90460), (316, 67845), (395, 54276), (474, 45230), (790, 27138), (948, 22615), (1185, 18092), (1580, 13569), (2370, 9046), (4523, 4740)]