21053254

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{13513}}^1$

素因数の和:13575

約数の個数: 16

約数和(自身を含む): 34055280

約数和(自身を除く): 13002026

約数列:

[1, 2, 19, 38, 41, 82, 779, 1558, 13513, 27026, 256747, 513494, 554033, 1108066, 10526627, 21053254]

約数ペア:

[(1, 21053254), (2, 10526627), (19, 1108066), (38, 554033), (41, 513494), (82, 256747), (779, 27026), (1558, 13513)]