21551724

素因数分解:

$2^2\times 3^3\times {\mathrm{431}}^1\times {\mathrm{463}}^1$

素因数の和:907

約数の個数: 48

約数和(自身を含む): 56125440

約数和(自身を除く): 34573716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 431, 463, 862, 926, 1293, 1389, 1724, 1852, 2586, 2778, 3879, 4167, 5172, 5556, 7758, 8334, 11637, 12501, 15516, 16668, 23274, 25002, 46548, 50004, 199553, 399106, 598659, 798212, 1197318, 1795977, 2394636, 3591954, 5387931, 7183908, 10775862, 21551724]

約数ペア:

[(1, 21551724), (2, 10775862), (3, 7183908), (4, 5387931), (6, 3591954), (9, 2394636), (12, 1795977), (18, 1197318), (27, 798212), (36, 598659), (54, 399106), (108, 199553), (431, 50004), (463, 46548), (862, 25002), (926, 23274), (1293, 16668), (1389, 15516), (1724, 12501), (1852, 11637), (2586, 8334), (2778, 7758), (3879, 5556), (4167, 5172)]