18685545

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1321}}^1$

素因数の和:1393

約数の個数: 32

約数和(自身を含む): 31981824

約数和(自身を除く): 13296279

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1321, 2829, 3963, 4715, 6605, 14145, 19815, 30383, 54161, 91149, 151915, 162483, 270805, 455745, 812415, 1245703, 3737109, 6228515, 18685545]

約数ペア:

[(1, 18685545), (3, 6228515), (5, 3737109), (15, 1245703), (23, 812415), (41, 455745), (69, 270805), (115, 162483), (123, 151915), (205, 91149), (345, 54161), (615, 30383), (943, 19815), (1321, 14145), (2829, 6605), (3963, 4715)]