21175648

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{467}}^1$

素因数の和:599

約数の個数: 48

約数和(自身を含む): 45405360

約数和(自身を除く): 24229712

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 109, 208, 218, 416, 436, 467, 872, 934, 1417, 1744, 1868, 2834, 3488, 3736, 5668, 6071, 7472, 11336, 12142, 14944, 22672, 24284, 45344, 48568, 50903, 97136, 101806, 194272, 203612, 407224, 661739, 814448, 1323478, 1628896, 2646956, 5293912, 10587824, 21175648]

約数ペア:

[(1, 21175648), (2, 10587824), (4, 5293912), (8, 2646956), (13, 1628896), (16, 1323478), (26, 814448), (32, 661739), (52, 407224), (104, 203612), (109, 194272), (208, 101806), (218, 97136), (416, 50903), (436, 48568), (467, 45344), (872, 24284), (934, 22672), (1417, 14944), (1744, 12142), (1868, 11336), (2834, 7472), (3488, 6071), (3736, 5668)]