19170431

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 23783424

約数和(自身を除く): 4612993

約数列:

[1, 7, 23, 31, 161, 167, 217, 529, 713, 1169, 3703, 3841, 4991, 5177, 16399, 26887, 36239, 88343, 114793, 119071, 618401, 833497, 2738633, 19170431]

約数ペア:

[(1, 19170431), (7, 2738633), (23, 833497), (31, 618401), (161, 119071), (167, 114793), (217, 88343), (529, 36239), (713, 26887), (1169, 16399), (3703, 5177), (3841, 4991)]