21840392

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5821}}^1$

素因数の和:5901

約数の個数: 32

約数和(自身を含む): 47507520

約数和(自身を除く): 25667128

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5821, 11642, 23284, 40747, 46568, 81494, 162988, 325976, 390007, 780014, 1560028, 2730049, 3120056, 5460098, 10920196, 21840392]

約数ペア:

[(1, 21840392), (2, 10920196), (4, 5460098), (7, 3120056), (8, 2730049), (14, 1560028), (28, 780014), (56, 390007), (67, 325976), (134, 162988), (268, 81494), (469, 46568), (536, 40747), (938, 23284), (1876, 11642), (3752, 5821)]