20645079

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1609}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 34621440

約数和(自身を除く): 13976361

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1609, 1833, 4277, 4827, 11263, 12831, 20917, 33789, 62751, 75623, 146419, 226869, 439257, 529361, 983099, 1588083, 2949297, 6881693, 20645079]

約数ペア:

[(1, 20645079), (3, 6881693), (7, 2949297), (13, 1588083), (21, 983099), (39, 529361), (47, 439257), (91, 226869), (141, 146419), (273, 75623), (329, 62751), (611, 33789), (987, 20917), (1609, 12831), (1833, 11263), (4277, 4827)]