21551690

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{93703}}^1$

素因数の和:93733

約数の個数: 16

約数和(自身を含む): 40480128

約数和(自身を除く): 18928438

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 93703, 187406, 468515, 937030, 2155169, 4310338, 10775845, 21551690]

約数ペア:

[(1, 21551690), (2, 10775845), (5, 4310338), (10, 2155169), (23, 937030), (46, 468515), (115, 187406), (230, 93703)]