20159517

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{179}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 11912163

約数列:

[1, 3, 7, 21, 31, 93, 173, 179, 217, 519, 537, 651, 1211, 1253, 3633, 3759, 5363, 5549, 16089, 16647, 30967, 37541, 38843, 92901, 112623, 116529, 216769, 650307, 959977, 2879931, 6719839, 20159517]

約数ペア:

[(1, 20159517), (3, 6719839), (7, 2879931), (21, 959977), (31, 650307), (93, 216769), (173, 116529), (179, 112623), (217, 92901), (519, 38843), (537, 37541), (651, 30967), (1211, 16647), (1253, 16089), (3633, 5549), (3759, 5363)]