21073448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2371}}^1$

素因数の和:2489

約数の個数: 32

約数和(自身を含む): 43549920

約数和(自身を除く): 22476472

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2222, 2371, 4444, 4742, 8888, 9484, 18968, 26081, 52162, 104324, 208648, 239471, 478942, 957884, 1915768, 2634181, 5268362, 10536724, 21073448]

約数ペア:

[(1, 21073448), (2, 10536724), (4, 5268362), (8, 2634181), (11, 1915768), (22, 957884), (44, 478942), (88, 239471), (101, 208648), (202, 104324), (404, 52162), (808, 26081), (1111, 18968), (2222, 9484), (2371, 8888), (4444, 4742)]