21226695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6971}}^1$

素因数の和:7015

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 18932025

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 6971, 20913, 34855, 48797, 104565, 146391, 202159, 243985, 606477, 731955, 1010795, 1415113, 3032385, 4245339, 7075565, 21226695]

約数ペア:

[(1, 21226695), (3, 7075565), (5, 4245339), (7, 3032385), (15, 1415113), (21, 1010795), (29, 731955), (35, 606477), (87, 243985), (105, 202159), (145, 146391), (203, 104565), (435, 48797), (609, 34855), (1015, 20913), (3045, 6971)]