21647812

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{1367}}^1$

素因数の和:1515

約数の個数: 24

約数和(自身を含む): 39299904

約数和(自身を除く): 17652092

約数列:

[1, 2, 4, 37, 74, 107, 148, 214, 428, 1367, 2734, 3959, 5468, 7918, 15836, 50579, 101158, 146269, 202316, 292538, 585076, 5411953, 10823906, 21647812]

約数ペア:

[(1, 21647812), (2, 10823906), (4, 5411953), (37, 585076), (74, 292538), (107, 202316), (148, 146269), (214, 101158), (428, 50579), (1367, 15836), (2734, 7918), (3959, 5468)]