21154278184

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{203406521}}^1$

素因数の和:203406540

約数の個数: 16

約数和(自身を含む): 42715369620

約数和(自身を除く): 21561091436

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 203406521, 406813042, 813626084, 1627252168, 2644284773, 5288569546, 10577139092, 21154278184]

約数ペア:

[(1, 21154278184), (2, 10577139092), (4, 5288569546), (8, 2644284773), (13, 1627252168), (26, 813626084), (52, 406813042), (104, 203406521)]