21151712

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{1831}}^1$

素因数の和:1879

約数の個数: 36

約数和(自身を含む): 43973496

約数和(自身を除く): 22821784

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 361, 608, 722, 1444, 1831, 2888, 3662, 5776, 7324, 11552, 14648, 29296, 34789, 58592, 69578, 139156, 278312, 556624, 660991, 1113248, 1321982, 2643964, 5287928, 10575856, 21151712]

約数ペア:

[(1, 21151712), (2, 10575856), (4, 5287928), (8, 2643964), (16, 1321982), (19, 1113248), (32, 660991), (38, 556624), (76, 278312), (152, 139156), (304, 69578), (361, 58592), (608, 34789), (722, 29296), (1444, 14648), (1831, 11552), (2888, 7324), (3662, 5776)]