19720136

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1747}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 39644640

約数和(自身を除く): 19924504

約数列:

[1, 2, 4, 8, 17, 34, 68, 83, 136, 166, 332, 664, 1411, 1747, 2822, 3494, 5644, 6988, 11288, 13976, 29699, 59398, 118796, 145001, 237592, 290002, 580004, 1160008, 2465017, 4930034, 9860068, 19720136]

約数ペア:

[(1, 19720136), (2, 9860068), (4, 4930034), (8, 2465017), (17, 1160008), (34, 580004), (68, 290002), (83, 237592), (136, 145001), (166, 118796), (332, 59398), (664, 29699), (1411, 13976), (1747, 11288), (2822, 6988), (3494, 5644)]