19910475

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2269}}^1$

素因数の和:2301

約数の個数: 48

約数和(自身を含む): 39407200

約数和(自身を除く): 19496725

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2269, 2925, 6807, 8775, 11345, 20421, 29497, 34035, 56725, 61263, 88491, 102105, 147485, 170175, 265473, 306315, 442455, 510525, 737425, 796419, 1327365, 1531575, 2212275, 3982095, 6636825, 19910475]

約数ペア:

[(1, 19910475), (3, 6636825), (5, 3982095), (9, 2212275), (13, 1531575), (15, 1327365), (25, 796419), (27, 737425), (39, 510525), (45, 442455), (65, 306315), (75, 265473), (117, 170175), (135, 147485), (195, 102105), (225, 88491), (325, 61263), (351, 56725), (585, 34035), (675, 29497), (975, 20421), (1755, 11345), (2269, 8775), (2925, 6807)]