21727248

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2777}}^1$

素因数の和:2951

約数の個数: 40

約数和(自身を含む): 56493408

約数和(自身を除く): 34766160

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 2777, 3912, 5554, 7824, 8331, 11108, 16662, 22216, 33324, 44432, 66648, 133296, 452651, 905302, 1357953, 1810604, 2715906, 3621208, 5431812, 7242416, 10863624, 21727248]

約数ペア:

[(1, 21727248), (2, 10863624), (3, 7242416), (4, 5431812), (6, 3621208), (8, 2715906), (12, 1810604), (16, 1357953), (24, 905302), (48, 452651), (163, 133296), (326, 66648), (489, 44432), (652, 33324), (978, 22216), (1304, 16662), (1956, 11108), (2608, 8331), (2777, 7824), (3912, 5554)]