19355570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{881}}^1$

素因数の和:927

約数の個数: 32

約数和(自身を含む): 37784880

約数和(自身を除く): 18429310

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 881, 1690, 1762, 2197, 4394, 4405, 8810, 10985, 11453, 21970, 22906, 57265, 114530, 148889, 297778, 744445, 1488890, 1935557, 3871114, 9677785, 19355570]

約数ペア:

[(1, 19355570), (2, 9677785), (5, 3871114), (10, 1935557), (13, 1488890), (26, 744445), (65, 297778), (130, 148889), (169, 114530), (338, 57265), (845, 22906), (881, 21970), (1690, 11453), (1762, 10985), (2197, 8810), (4394, 4405)]