21067635

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{367}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 34974720

約数和(自身を除く): 13907085

約数列:

[1, 3, 5, 15, 43, 89, 129, 215, 267, 367, 445, 645, 1101, 1335, 1835, 3827, 5505, 11481, 15781, 19135, 32663, 47343, 57405, 78905, 97989, 163315, 236715, 489945, 1404509, 4213527, 7022545, 21067635]

約数ペア:

[(1, 21067635), (3, 7022545), (5, 4213527), (15, 1404509), (43, 489945), (89, 236715), (129, 163315), (215, 97989), (267, 78905), (367, 57405), (445, 47343), (645, 32663), (1101, 19135), (1335, 15781), (1835, 11481), (3827, 5505)]