18668755

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3313}}^1$

素因数の和:3355

約数の個数: 24

約数和(自身を含む): 27201312

約数和(自身を除く): 8532557

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 805, 1127, 3313, 5635, 16565, 23191, 76199, 115955, 162337, 380995, 533393, 811685, 2666965, 3733751, 18668755]

約数ペア:

[(1, 18668755), (5, 3733751), (7, 2666965), (23, 811685), (35, 533393), (49, 380995), (115, 162337), (161, 115955), (245, 76199), (805, 23191), (1127, 16565), (3313, 5635)]