21000252669

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{757}}^1\times {\mathrm{12547}}^1$

素因数の和:13385

約数の個数: 32

約数和(自身を含む): 31045157376

約数和(自身を除く): 10044904707

約数列:

[1, 3, 11, 33, 67, 201, 737, 757, 2211, 2271, 8327, 12547, 24981, 37641, 50719, 138017, 152157, 414051, 557909, 840649, 1673727, 2521947, 9247139, 9498079, 27741417, 28494237, 104478869, 313436607, 636371293, 1909113879, 7000084223, 21000252669]

約数ペア:

[(1, 21000252669), (3, 7000084223), (11, 1909113879), (33, 636371293), (67, 313436607), (201, 104478869), (737, 28494237), (757, 27741417), (2211, 9498079), (2271, 9247139), (8327, 2521947), (12547, 1673727), (24981, 840649), (37641, 557909), (50719, 414051), (138017, 152157)]