21798838

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{907}}^1$

素因数の和:1167

約数の個数: 16

約数和(自身を含む): 33439824

約数和(自身を除く): 11640986

約数列:

[1, 2, 61, 122, 197, 394, 907, 1814, 12017, 24034, 55327, 110654, 178679, 357358, 10899419, 21798838]

約数ペア:

[(1, 21798838), (2, 10899419), (61, 357358), (122, 178679), (197, 110654), (394, 55327), (907, 24034), (1814, 12017)]