21508728

素因数分解:

$2^3\times 3^1\times {\mathrm{271}}^1\times {\mathrm{3307}}^1$

素因数の和:3587

約数の個数: 32

約数和(自身を含む): 53986560

約数和(自身を除く): 32477832

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 271, 542, 813, 1084, 1626, 2168, 3252, 3307, 6504, 6614, 9921, 13228, 19842, 26456, 39684, 79368, 896197, 1792394, 2688591, 3584788, 5377182, 7169576, 10754364, 21508728]

約数ペア:

[(1, 21508728), (2, 10754364), (3, 7169576), (4, 5377182), (6, 3584788), (8, 2688591), (12, 1792394), (24, 896197), (271, 79368), (542, 39684), (813, 26456), (1084, 19842), (1626, 13228), (2168, 9921), (3252, 6614), (3307, 6504)]