21874986

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1249}}^1$

素因数の和:1403

約数の個数: 48

約数和(自身を含む): 54600000

約数和(自身を除く): 32725014

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 139, 278, 417, 834, 973, 1249, 1251, 1946, 2498, 2502, 2919, 3747, 5838, 7494, 8743, 8757, 11241, 17486, 17514, 22482, 26229, 52458, 78687, 157374, 173611, 347222, 520833, 1041666, 1215277, 1562499, 2430554, 3124998, 3645831, 7291662, 10937493, 21874986]

約数ペア:

[(1, 21874986), (2, 10937493), (3, 7291662), (6, 3645831), (7, 3124998), (9, 2430554), (14, 1562499), (18, 1215277), (21, 1041666), (42, 520833), (63, 347222), (126, 173611), (139, 157374), (278, 78687), (417, 52458), (834, 26229), (973, 22482), (1249, 17514), (1251, 17486), (1946, 11241), (2498, 8757), (2502, 8743), (2919, 7494), (3747, 5838)]