21520440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59779}}^1$

素因数の和:59796

約数の個数: 48

約数和(自身を含む): 69942600

約数和(自身を除く): 48422160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59779, 119558, 179337, 239116, 298895, 358674, 478232, 538011, 597790, 717348, 896685, 1076022, 1195580, 1434696, 1793370, 2152044, 2391160, 2690055, 3586740, 4304088, 5380110, 7173480, 10760220, 21520440]

約数ペア:

[(1, 21520440), (2, 10760220), (3, 7173480), (4, 5380110), (5, 4304088), (6, 3586740), (8, 2690055), (9, 2391160), (10, 2152044), (12, 1793370), (15, 1434696), (18, 1195580), (20, 1076022), (24, 896685), (30, 717348), (36, 597790), (40, 538011), (45, 478232), (60, 358674), (72, 298895), (90, 239116), (120, 179337), (180, 119558), (360, 59779)]