31528847

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 40128000

約数和(自身を除く): 8599153

約数列:

[1, 7, 19, 37, 43, 133, 149, 259, 301, 703, 817, 1043, 1591, 2831, 4921, 5513, 5719, 6407, 11137, 19817, 30229, 38591, 44849, 104747, 121733, 211603, 237059, 733229, 852131, 1659413, 4504121, 31528847]

約数ペア:

[(1, 31528847), (7, 4504121), (19, 1659413), (37, 852131), (43, 733229), (133, 237059), (149, 211603), (259, 121733), (301, 104747), (703, 44849), (817, 38591), (1043, 30229), (1591, 19817), (2831, 11137), (4921, 6407), (5513, 5719)]