21858075

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5113}}^1$

素因数の和:5148

約数の個数: 36

約数和(自身を含む): 41218840

約数和(自身を除く): 19360765

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 5113, 15339, 25565, 46017, 76695, 97147, 127825, 230085, 291441, 383475, 485735, 874323, 1150425, 1457205, 2428675, 4371615, 7286025, 21858075]

約数ペア:

[(1, 21858075), (3, 7286025), (5, 4371615), (9, 2428675), (15, 1457205), (19, 1150425), (25, 874323), (45, 485735), (57, 383475), (75, 291441), (95, 230085), (171, 127825), (225, 97147), (285, 76695), (475, 46017), (855, 25565), (1425, 15339), (4275, 5113)]