21027248

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3229}}^1$

素因数の和:3285

約数の個数: 40

約数和(自身を含む): 45659280

約数和(自身を除く): 24632032

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 3229, 3256, 6458, 6512, 12916, 25832, 35519, 51664, 71038, 119473, 142076, 238946, 284152, 477892, 568304, 955784, 1314203, 1911568, 2628406, 5256812, 10513624, 21027248]

約数ペア:

[(1, 21027248), (2, 10513624), (4, 5256812), (8, 2628406), (11, 1911568), (16, 1314203), (22, 955784), (37, 568304), (44, 477892), (74, 284152), (88, 238946), (148, 142076), (176, 119473), (296, 71038), (407, 51664), (592, 35519), (814, 25832), (1628, 12916), (3229, 6512), (3256, 6458)]