28871745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2099}}^1$

素因数の和:2245

約数の個数: 32

約数和(自身を含む): 53222400

約数和(自身を除く): 24350655

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 393, 655, 917, 1965, 2099, 2751, 4585, 6297, 10495, 13755, 14693, 31485, 44079, 73465, 220395, 274969, 824907, 1374845, 1924783, 4124535, 5774349, 9623915, 28871745]

約数ペア:

[(1, 28871745), (3, 9623915), (5, 5774349), (7, 4124535), (15, 1924783), (21, 1374845), (35, 824907), (105, 274969), (131, 220395), (393, 73465), (655, 44079), (917, 31485), (1965, 14693), (2099, 13755), (2751, 10495), (4585, 6297)]