21072584

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202621}}^1$

素因数の和:202640

約数の個数: 16

約数和(自身を含む): 42550620

約数和(自身を除く): 21478036

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202621, 405242, 810484, 1620968, 2634073, 5268146, 10536292, 21072584]

約数ペア:

[(1, 21072584), (2, 10536292), (4, 5268146), (8, 2634073), (13, 1620968), (26, 810484), (52, 405242), (104, 202621)]