19894325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{991}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 27307776

約数和(自身を除く): 7413451

約数列:

[1, 5, 11, 25, 55, 73, 275, 365, 803, 991, 1825, 4015, 4955, 10901, 20075, 24775, 54505, 72343, 272525, 361715, 795773, 1808575, 3978865, 19894325]

約数ペア:

[(1, 19894325), (5, 3978865), (11, 1808575), (25, 795773), (55, 361715), (73, 272525), (275, 72343), (365, 54505), (803, 24775), (991, 20075), (1825, 10901), (4015, 4955)]