20921204

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{5857}}^1$

素因数の和:5927

約数の個数: 24

約数和(自身を含む): 39365760

約数和(自身を除く): 18444556

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 893, 1786, 3572, 5857, 11714, 23428, 111283, 222566, 275279, 445132, 550558, 1101116, 5230301, 10460602, 20921204]

約数ペア:

[(1, 20921204), (2, 10460602), (4, 5230301), (19, 1101116), (38, 550558), (47, 445132), (76, 275279), (94, 222566), (188, 111283), (893, 23428), (1786, 11714), (3572, 5857)]