21146988

素因数分解:

$2^2\times 3^1\times {\mathrm{257}}^1\times {\mathrm{6857}}^1$

素因数の和:7121

約数の個数: 24

約数和(自身を含む): 49542192

約数和(自身を除く): 28395204

約数列:

[1, 2, 3, 4, 6, 12, 257, 514, 771, 1028, 1542, 3084, 6857, 13714, 20571, 27428, 41142, 82284, 1762249, 3524498, 5286747, 7048996, 10573494, 21146988]

約数ペア:

[(1, 21146988), (2, 10573494), (3, 7048996), (4, 5286747), (6, 3524498), (12, 1762249), (257, 82284), (514, 41142), (771, 27428), (1028, 20571), (1542, 13714), (3084, 6857)]