647946

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 1581120

約数和(自身を除く): 933174

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 71, 78, 117, 142, 169, 213, 234, 338, 351, 426, 507, 639, 702, 923, 1014, 1278, 1521, 1846, 1917, 2769, 3042, 3834, 4563, 5538, 8307, 9126, 11999, 16614, 23998, 24921, 35997, 49842, 71994, 107991, 215982, 323973, 647946]

約数ペア:

[(1, 647946), (2, 323973), (3, 215982), (6, 107991), (9, 71994), (13, 49842), (18, 35997), (26, 24921), (27, 23998), (39, 16614), (54, 11999), (71, 9126), (78, 8307), (117, 5538), (142, 4563), (169, 3834), (213, 3042), (234, 2769), (338, 1917), (351, 1846), (426, 1521), (507, 1278), (639, 1014), (702, 923)]