19449740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13697}}^1$

素因数の和:13777

約数の個数: 24

約数和(自身を含む): 41422752

約数和(自身を除く): 21973012

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13697, 27394, 54788, 68485, 136970, 273940, 972487, 1944974, 3889948, 4862435, 9724870, 19449740]

約数ペア:

[(1, 19449740), (2, 9724870), (4, 4862435), (5, 3889948), (10, 1944974), (20, 972487), (71, 273940), (142, 136970), (284, 68485), (355, 54788), (710, 27394), (1420, 13697)]