20905942

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{7703}}^1$

素因数の和:7787

約数の個数: 16

約数和(自身を含む): 33281280

約数和(自身を除く): 12375338

約数列:

[1, 2, 23, 46, 59, 118, 1357, 2714, 7703, 15406, 177169, 354338, 454477, 908954, 10452971, 20905942]

約数ペア:

[(1, 20905942), (2, 10452971), (23, 908954), (46, 454477), (59, 354338), (118, 177169), (1357, 15406), (2714, 7703)]