21554085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1567}}^1$

素因数の和:1713

約数の個数: 32

約数和(自身を含む): 39739392

約数和(自身を除く): 18185307

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 393, 655, 917, 1567, 1965, 2751, 4585, 4701, 7835, 10969, 13755, 23505, 32907, 54845, 164535, 205277, 615831, 1026385, 1436939, 3079155, 4310817, 7184695, 21554085]

約数ペア:

[(1, 21554085), (3, 7184695), (5, 4310817), (7, 3079155), (15, 1436939), (21, 1026385), (35, 615831), (105, 205277), (131, 164535), (393, 54845), (655, 32907), (917, 23505), (1567, 13755), (1965, 10969), (2751, 7835), (4585, 4701)]