20321565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1559}}^1$

素因数の和:1657

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 15620835

約数列:

[1, 3, 5, 11, 15, 33, 55, 79, 165, 237, 395, 869, 1185, 1559, 2607, 4345, 4677, 7795, 13035, 17149, 23385, 51447, 85745, 123161, 257235, 369483, 615805, 1354771, 1847415, 4064313, 6773855, 20321565]

約数ペア:

[(1, 20321565), (3, 6773855), (5, 4064313), (11, 1847415), (15, 1354771), (33, 615805), (55, 369483), (79, 257235), (165, 123161), (237, 85745), (395, 51447), (869, 23385), (1185, 17149), (1559, 13035), (2607, 7795), (4345, 4677)]