20854335

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{251}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13982145

約数列:

[1, 3, 5, 15, 29, 87, 145, 191, 251, 435, 573, 753, 955, 1255, 2865, 3765, 5539, 7279, 16617, 21837, 27695, 36395, 47941, 83085, 109185, 143823, 239705, 719115, 1390289, 4170867, 6951445, 20854335]

約数ペア:

[(1, 20854335), (3, 6951445), (5, 4170867), (15, 1390289), (29, 719115), (87, 239705), (145, 143823), (191, 109185), (251, 83085), (435, 47941), (573, 36395), (753, 27695), (955, 21837), (1255, 16617), (2865, 7279), (3765, 5539)]