20531548

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:394

約数の個数: 36

約数和(自身を含む): 38895808

約数和(自身を除く): 18364260

約数列:

[1, 2, 4, 23, 31, 46, 62, 92, 124, 313, 529, 626, 713, 1058, 1252, 1426, 2116, 2852, 7199, 9703, 14398, 16399, 19406, 28796, 32798, 38812, 65596, 165577, 223169, 331154, 446338, 662308, 892676, 5132887, 10265774, 20531548]

約数ペア:

[(1, 20531548), (2, 10265774), (4, 5132887), (23, 892676), (31, 662308), (46, 446338), (62, 331154), (92, 223169), (124, 165577), (313, 65596), (529, 38812), (626, 32798), (713, 28796), (1058, 19406), (1252, 16399), (1426, 14398), (2116, 9703), (2852, 7199)]