21234064

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32369}}^1$

素因数の和:32418

約数の個数: 20

約数和(自身を含む): 42145740

約数和(自身を除く): 20911676

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32369, 64738, 129476, 258952, 517904, 1327129, 2654258, 5308516, 10617032, 21234064]

約数ペア:

[(1, 21234064), (2, 10617032), (4, 5308516), (8, 2654258), (16, 1327129), (41, 517904), (82, 258952), (164, 129476), (328, 64738), (656, 32369)]