19984088

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1419

約数の個数: 32

約数和(自身を含む): 39342720

約数和(自身を除く): 19358632

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 244, 248, 488, 1321, 1891, 2642, 3782, 5284, 7564, 10568, 15128, 40951, 80581, 81902, 161162, 163804, 322324, 327608, 644648, 2498011, 4996022, 9992044, 19984088]

約数ペア:

[(1, 19984088), (2, 9992044), (4, 4996022), (8, 2498011), (31, 644648), (61, 327608), (62, 322324), (122, 163804), (124, 161162), (244, 81902), (248, 80581), (488, 40951), (1321, 15128), (1891, 10568), (2642, 7564), (3782, 5284)]