216856654

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{51461}}^1$

素因数の和:51520

約数の個数: 24

約数和(自身を含む): 387200088

約数和(自身を除く): 170343434

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 301, 602, 2107, 4214, 51461, 102922, 360227, 720454, 2212823, 2521589, 4425646, 5043178, 15489761, 30979522, 108428327, 216856654]

約数ペア:

[(1, 216856654), (2, 108428327), (7, 30979522), (14, 15489761), (43, 5043178), (49, 4425646), (86, 2521589), (98, 2212823), (301, 720454), (602, 360227), (2107, 102922), (4214, 51461)]