19881008

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6121}}^1$

素因数の和:6165

約数の個数: 40

約数和(自身を含む): 45547680

約数和(自身を除く): 25666672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 6121, 12242, 24484, 42847, 48968, 85694, 97936, 171388, 177509, 342776, 355018, 685552, 710036, 1242563, 1420072, 2485126, 2840144, 4970252, 9940504, 19881008]

約数ペア:

[(1, 19881008), (2, 9940504), (4, 4970252), (7, 2840144), (8, 2485126), (14, 1420072), (16, 1242563), (28, 710036), (29, 685552), (56, 355018), (58, 342776), (112, 177509), (116, 171388), (203, 97936), (232, 85694), (406, 48968), (464, 42847), (812, 24484), (1624, 12242), (3248, 6121)]