19985336

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2999}}^1$

素因数の和:3036

約数の個数: 48

約数和(自身を含む): 46170000

約数和(自身を除く): 26184664

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 2999, 3332, 5998, 6664, 11996, 20993, 23992, 41986, 50983, 83972, 101966, 146951, 167944, 203932, 293902, 356881, 407864, 587804, 713762, 1175608, 1427524, 2498167, 2855048, 4996334, 9992668, 19985336]

約数ペア:

[(1, 19985336), (2, 9992668), (4, 4996334), (7, 2855048), (8, 2498167), (14, 1427524), (17, 1175608), (28, 713762), (34, 587804), (49, 407864), (56, 356881), (68, 293902), (98, 203932), (119, 167944), (136, 146951), (196, 101966), (238, 83972), (392, 50983), (476, 41986), (833, 23992), (952, 20993), (1666, 11996), (2999, 6664), (3332, 5998)]