21512656

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122231}}^1$

素因数の和:122250

約数の個数: 20

約数和(自身を含む): 45470304

約数和(自身を除く): 23957648

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122231, 244462, 488924, 977848, 1344541, 1955696, 2689082, 5378164, 10756328, 21512656]

約数ペア:

[(1, 21512656), (2, 10756328), (4, 5378164), (8, 2689082), (11, 1955696), (16, 1344541), (22, 977848), (44, 488924), (88, 244462), (176, 122231)]