21496772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1052

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 23500348

約数列:

[1, 2, 4, 11, 17, 22, 29, 34, 44, 58, 68, 116, 187, 319, 374, 493, 638, 748, 986, 991, 1276, 1972, 1982, 3964, 5423, 10846, 10901, 16847, 21692, 21802, 28739, 33694, 43604, 57478, 67388, 114956, 185317, 316129, 370634, 488563, 632258, 741268, 977126, 1264516, 1954252, 5374193, 10748386, 21496772]

約数ペア:

[(1, 21496772), (2, 10748386), (4, 5374193), (11, 1954252), (17, 1264516), (22, 977126), (29, 741268), (34, 632258), (44, 488563), (58, 370634), (68, 316129), (116, 185317), (187, 114956), (319, 67388), (374, 57478), (493, 43604), (638, 33694), (748, 28739), (986, 21802), (991, 21692), (1276, 16847), (1972, 10901), (1982, 10846), (3964, 5423)]