21550928

素因数分解:

$2^4\times 7^1\times {\mathrm{317}}^1\times {\mathrm{607}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 47949312

約数和(自身を除く): 26398384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 317, 607, 634, 1214, 1268, 2219, 2428, 2536, 4249, 4438, 4856, 5072, 8498, 8876, 9712, 16996, 17752, 33992, 35504, 67984, 192419, 384838, 769676, 1346933, 1539352, 2693866, 3078704, 5387732, 10775464, 21550928]

約数ペア:

[(1, 21550928), (2, 10775464), (4, 5387732), (7, 3078704), (8, 2693866), (14, 1539352), (16, 1346933), (28, 769676), (56, 384838), (112, 192419), (317, 67984), (607, 35504), (634, 33992), (1214, 17752), (1268, 16996), (2219, 9712), (2428, 8876), (2536, 8498), (4249, 5072), (4438, 4856)]