21859025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2707}}^1$

素因数の和:2753

約数の個数: 24

約数和(自身を含む): 30221280

約数和(自身を除く): 8362255

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2707, 8075, 13535, 46019, 51433, 67675, 230095, 257165, 874361, 1150475, 1285825, 4371805, 21859025]

約数ペア:

[(1, 21859025), (5, 4371805), (17, 1285825), (19, 1150475), (25, 874361), (85, 257165), (95, 230095), (323, 67675), (425, 51433), (475, 46019), (1615, 13535), (2707, 8075)]