20968761

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{631}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 32762880

約数和(自身を除く): 11794119

約数列:

[1, 3, 11, 19, 33, 53, 57, 159, 209, 583, 627, 631, 1007, 1749, 1893, 3021, 6941, 11077, 11989, 20823, 33231, 33443, 35967, 100329, 131879, 367873, 395637, 635417, 1103619, 1906251, 6989587, 20968761]

約数ペア:

[(1, 20968761), (3, 6989587), (11, 1906251), (19, 1103619), (33, 635417), (53, 395637), (57, 367873), (159, 131879), (209, 100329), (583, 35967), (627, 33443), (631, 33231), (1007, 20823), (1749, 11989), (1893, 11077), (3021, 6941)]