21386724

素因数分解:

$2^2\times 3^1\times {\mathrm{809}}^1\times {\mathrm{2203}}^1$

素因数の和:3019

約数の個数: 24

約数和(自身を含む): 49986720

約数和(自身を除く): 28599996

約数列:

[1, 2, 3, 4, 6, 12, 809, 1618, 2203, 2427, 3236, 4406, 4854, 6609, 8812, 9708, 13218, 26436, 1782227, 3564454, 5346681, 7128908, 10693362, 21386724]

約数ペア:

[(1, 21386724), (2, 10693362), (3, 7128908), (4, 5346681), (6, 3564454), (12, 1782227), (809, 26436), (1618, 13218), (2203, 9708), (2427, 8812), (3236, 6609), (4406, 4854)]