21270420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118169}}^1$

素因数の和:118184

約数の個数: 36

約数和(自身を含む): 64520820

約数和(自身を除く): 43250400

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118169, 236338, 354507, 472676, 590845, 709014, 1063521, 1181690, 1418028, 1772535, 2127042, 2363380, 3545070, 4254084, 5317605, 7090140, 10635210, 21270420]

約数ペア:

[(1, 21270420), (2, 10635210), (3, 7090140), (4, 5317605), (5, 4254084), (6, 3545070), (9, 2363380), (10, 2127042), (12, 1772535), (15, 1418028), (18, 1181690), (20, 1063521), (30, 709014), (36, 590845), (45, 472676), (60, 354507), (90, 236338), (180, 118169)]