21065368

素因数分解:

$2^3\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 42644160

約数和(自身を除く): 21578792

約数列:

[1, 2, 4, 8, 29, 31, 58, 62, 101, 116, 124, 202, 232, 248, 404, 808, 841, 899, 1682, 1798, 2929, 3131, 3364, 3596, 5858, 6262, 6728, 7192, 11716, 12524, 23432, 25048, 26071, 52142, 84941, 90799, 104284, 169882, 181598, 208568, 339764, 363196, 679528, 726392, 2633171, 5266342, 10532684, 21065368]

約数ペア:

[(1, 21065368), (2, 10532684), (4, 5266342), (8, 2633171), (29, 726392), (31, 679528), (58, 363196), (62, 339764), (101, 208568), (116, 181598), (124, 169882), (202, 104284), (232, 90799), (248, 84941), (404, 52142), (808, 26071), (841, 25048), (899, 23432), (1682, 12524), (1798, 11716), (2929, 7192), (3131, 6728), (3364, 6262), (3596, 5858)]