21998152

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{547}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 45177120

約数和(自身を除く): 23178968

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 457, 547, 914, 1094, 1828, 2188, 3656, 4376, 5027, 6017, 10054, 12034, 20108, 24068, 40216, 48136, 249979, 499958, 999916, 1999832, 2749769, 5499538, 10999076, 21998152]

約数ペア:

[(1, 21998152), (2, 10999076), (4, 5499538), (8, 2749769), (11, 1999832), (22, 999916), (44, 499958), (88, 249979), (457, 48136), (547, 40216), (914, 24068), (1094, 20108), (1828, 12034), (2188, 10054), (3656, 6017), (4376, 5027)]