19771384

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{21871}}^1$

素因数の和:21990

約数の個数: 16

約数和(自身を含む): 37401120

約数和(自身を除く): 17629736

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 21871, 43742, 87484, 174968, 2471423, 4942846, 9885692, 19771384]

約数ペア:

[(1, 19771384), (2, 9885692), (4, 4942846), (8, 2471423), (113, 174968), (226, 87484), (452, 43742), (904, 21871)]