19863860

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5741}}^1$

素因数の和:5923

約数の個数: 24

約数和(自身を含む): 41962536

約数和(自身を除く): 22098676

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 5741, 11482, 22964, 28705, 57410, 114820, 993193, 1986386, 3972772, 4965965, 9931930, 19863860]

約数ペア:

[(1, 19863860), (2, 9931930), (4, 4965965), (5, 3972772), (10, 1986386), (20, 993193), (173, 114820), (346, 57410), (692, 28705), (865, 22964), (1730, 11482), (3460, 5741)]