18440279

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 23014320

約数和(自身を除く): 4574041

約数列:

[1, 11, 13, 19, 121, 143, 209, 247, 617, 1573, 2299, 2717, 6787, 8021, 11723, 29887, 74657, 88231, 128953, 152399, 970541, 1418483, 1676389, 18440279]

約数ペア:

[(1, 18440279), (11, 1676389), (13, 1418483), (19, 970541), (121, 152399), (143, 128953), (209, 88231), (247, 74657), (617, 29887), (1573, 11723), (2299, 8021), (2717, 6787)]