19543815

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2039}}^1$

素因数の和:2124

約数の個数: 32

約数和(自身を含む): 35251200

約数和(自身を除く): 15707385

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 2039, 3195, 6117, 9585, 10195, 18351, 30585, 55053, 91755, 144769, 275265, 434307, 723845, 1302921, 2171535, 3908763, 6514605, 19543815]

約数ペア:

[(1, 19543815), (3, 6514605), (5, 3908763), (9, 2171535), (15, 1302921), (27, 723845), (45, 434307), (71, 275265), (135, 144769), (213, 91755), (355, 55053), (639, 30585), (1065, 18351), (1917, 10195), (2039, 9585), (3195, 6117)]