20939604

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3511}}^1$

素因数の和:3596

約数の個数: 48

約数和(自身を含む): 56641536

約数和(自身を除く): 35701932

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 3511, 5964, 7022, 10533, 14044, 21066, 24577, 42132, 49154, 73731, 98308, 147462, 249281, 294924, 498562, 747843, 997124, 1495686, 1744967, 2991372, 3489934, 5234901, 6979868, 10469802, 20939604]

約数ペア:

[(1, 20939604), (2, 10469802), (3, 6979868), (4, 5234901), (6, 3489934), (7, 2991372), (12, 1744967), (14, 1495686), (21, 997124), (28, 747843), (42, 498562), (71, 294924), (84, 249281), (142, 147462), (213, 98308), (284, 73731), (426, 49154), (497, 42132), (852, 24577), (994, 21066), (1491, 14044), (1988, 10533), (2982, 7022), (3511, 5964)]