21519045

素因数分解:

$3^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1303}}^1$

素因数の和:1681

約数の個数: 24

約数和(自身を含む): 37430016

約数和(自身を除く): 15910971

約数列:

[1, 3, 5, 9, 15, 45, 367, 1101, 1303, 1835, 3303, 3909, 5505, 6515, 11727, 16515, 19545, 58635, 478201, 1434603, 2391005, 4303809, 7173015, 21519045]

約数ペア:

[(1, 21519045), (3, 7173015), (5, 4303809), (9, 2391005), (15, 1434603), (45, 478201), (367, 58635), (1101, 19545), (1303, 16515), (1835, 11727), (3303, 6515), (3909, 5505)]