21360420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118669}}^1$

素因数の和:118684

約数の個数: 36

約数和(自身を含む): 64793820

約数和(自身を除く): 43433400

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118669, 237338, 356007, 474676, 593345, 712014, 1068021, 1186690, 1424028, 1780035, 2136042, 2373380, 3560070, 4272084, 5340105, 7120140, 10680210, 21360420]

約数ペア:

[(1, 21360420), (2, 10680210), (3, 7120140), (4, 5340105), (5, 4272084), (6, 3560070), (9, 2373380), (10, 2136042), (12, 1780035), (15, 1424028), (18, 1186690), (20, 1068021), (30, 712014), (36, 593345), (45, 474676), (60, 356007), (90, 237338), (180, 118669)]