21504025

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 27676800

約数和(自身を除く): 6172775

約数列:

[1, 5, 25, 59, 61, 239, 295, 305, 1195, 1475, 1525, 3599, 5975, 14101, 14579, 17995, 70505, 72895, 89975, 352525, 364475, 860161, 4300805, 21504025]

約数ペア:

[(1, 21504025), (5, 4300805), (25, 860161), (59, 364475), (61, 352525), (239, 89975), (295, 72895), (305, 70505), (1195, 17995), (1475, 14579), (1525, 14101), (3599, 5975)]