21996623

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 5582257

約数列:

[1, 11, 17, 19, 41, 151, 187, 209, 323, 451, 697, 779, 1661, 2567, 2869, 3553, 6191, 7667, 8569, 13243, 28237, 31559, 48773, 68101, 105247, 117629, 145673, 536503, 1157717, 1293919, 1999693, 21996623]

約数ペア:

[(1, 21996623), (11, 1999693), (17, 1293919), (19, 1157717), (41, 536503), (151, 145673), (187, 117629), (209, 105247), (323, 68101), (451, 48773), (697, 31559), (779, 28237), (1661, 13243), (2567, 8569), (2869, 7667), (3553, 6191)]