18921656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5869}}^1$

素因数の和:5919

約数の個数: 32

約数和(自身を含む): 39446400

約数和(自身を除く): 20524744

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 5869, 11738, 23476, 46952, 76297, 152594, 181939, 305188, 363878, 610376, 727756, 1455512, 2365207, 4730414, 9460828, 18921656]

約数ペア:

[(1, 18921656), (2, 9460828), (4, 4730414), (8, 2365207), (13, 1455512), (26, 727756), (31, 610376), (52, 363878), (62, 305188), (104, 181939), (124, 152594), (248, 76297), (403, 46952), (806, 23476), (1612, 11738), (3224, 5869)]