21360540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{577}}^1\times {\mathrm{617}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 60010272

約数和(自身を除く): 38649732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 577, 617, 1154, 1234, 1731, 1851, 2308, 2468, 2885, 3085, 3462, 3702, 5770, 6170, 6924, 7404, 8655, 9255, 11540, 12340, 17310, 18510, 34620, 37020, 356009, 712018, 1068027, 1424036, 1780045, 2136054, 3560090, 4272108, 5340135, 7120180, 10680270, 21360540]

約数ペア:

[(1, 21360540), (2, 10680270), (3, 7120180), (4, 5340135), (5, 4272108), (6, 3560090), (10, 2136054), (12, 1780045), (15, 1424036), (20, 1068027), (30, 712018), (60, 356009), (577, 37020), (617, 34620), (1154, 18510), (1234, 17310), (1731, 12340), (1851, 11540), (2308, 9255), (2468, 8655), (2885, 7404), (3085, 6924), (3462, 6170), (3702, 5770)]