21569898

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 30039702

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 49, 94, 98, 141, 147, 223, 282, 294, 329, 343, 446, 658, 669, 686, 987, 1029, 1338, 1561, 1974, 2058, 2303, 3122, 4606, 4683, 6909, 9366, 10481, 10927, 13818, 16121, 20962, 21854, 31443, 32242, 32781, 48363, 62886, 65562, 73367, 76489, 96726, 146734, 152978, 220101, 229467, 440202, 458934, 513569, 1027138, 1540707, 3081414, 3594983, 7189966, 10784949, 21569898]

約数ペア:

[(1, 21569898), (2, 10784949), (3, 7189966), (6, 3594983), (7, 3081414), (14, 1540707), (21, 1027138), (42, 513569), (47, 458934), (49, 440202), (94, 229467), (98, 220101), (141, 152978), (147, 146734), (223, 96726), (282, 76489), (294, 73367), (329, 65562), (343, 62886), (446, 48363), (658, 32781), (669, 32242), (686, 31443), (987, 21854), (1029, 20962), (1338, 16121), (1561, 13818), (1974, 10927), (2058, 10481), (2303, 9366), (3122, 6909), (4606, 4683)]