21728664

素因数分解:

$2^3\times 3^2\times {\mathrm{47}}^1\times {\mathrm{6421}}^1$

素因数の和:6480

約数の個数: 48

約数和(自身を含む): 60109920

約数和(自身を除く): 38381256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 47, 72, 94, 141, 188, 282, 376, 423, 564, 846, 1128, 1692, 3384, 6421, 12842, 19263, 25684, 38526, 51368, 57789, 77052, 115578, 154104, 231156, 301787, 462312, 603574, 905361, 1207148, 1810722, 2414296, 2716083, 3621444, 5432166, 7242888, 10864332, 21728664]

約数ペア:

[(1, 21728664), (2, 10864332), (3, 7242888), (4, 5432166), (6, 3621444), (8, 2716083), (9, 2414296), (12, 1810722), (18, 1207148), (24, 905361), (36, 603574), (47, 462312), (72, 301787), (94, 231156), (141, 154104), (188, 115578), (282, 77052), (376, 57789), (423, 51368), (564, 38526), (846, 25684), (1128, 19263), (1692, 12842), (3384, 6421)]