21013996

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{9931}}^1$

素因数の和:9981

約数の個数: 18

約数和(自身を含む): 38446772

約数和(自身を除く): 17432776

約数列:

[1, 2, 4, 23, 46, 92, 529, 1058, 2116, 9931, 19862, 39724, 228413, 456826, 913652, 5253499, 10506998, 21013996]

約数ペア:

[(1, 21013996), (2, 10506998), (4, 5253499), (23, 913652), (46, 456826), (92, 228413), (529, 39724), (1058, 19862), (2116, 9931)]