19131796

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{881}}^1$

素因数の和:1035

約数の個数: 24

約数和(自身を含む): 34450920

約数和(自身を除く): 15319124

約数列:

[1, 2, 4, 61, 89, 122, 178, 244, 356, 881, 1762, 3524, 5429, 10858, 21716, 53741, 78409, 107482, 156818, 214964, 313636, 4782949, 9565898, 19131796]

約数ペア:

[(1, 19131796), (2, 9565898), (4, 4782949), (61, 313636), (89, 214964), (122, 156818), (178, 107482), (244, 78409), (356, 53741), (881, 21716), (1762, 10858), (3524, 5429)]