21453730

素因数分解:

$2^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{12401}}^1$

素因数の和:12581

約数の個数: 16

約数和(自身を含む): 38843064

約数和(自身を除く): 17389334

約数列:

[1, 2, 5, 10, 173, 346, 865, 1730, 12401, 24802, 62005, 124010, 2145373, 4290746, 10726865, 21453730]

約数ペア:

[(1, 21453730), (2, 10726865), (5, 4290746), (10, 2145373), (173, 124010), (346, 62005), (865, 24802), (1730, 12401)]