19578728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2383}}^1$

素因数の和:2481

約数の個数: 32

約数和(自身を含む): 40051200

約数和(自身を除く): 20472472

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 316, 632, 1027, 2054, 2383, 4108, 4766, 8216, 9532, 19064, 30979, 61958, 123916, 188257, 247832, 376514, 753028, 1506056, 2447341, 4894682, 9789364, 19578728]

約数ペア:

[(1, 19578728), (2, 9789364), (4, 4894682), (8, 2447341), (13, 1506056), (26, 753028), (52, 376514), (79, 247832), (104, 188257), (158, 123916), (316, 61958), (632, 30979), (1027, 19064), (2054, 9532), (2383, 8216), (4108, 4766)]