2687748

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{653}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 7324800

約数和(自身を除く): 4637052

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 653, 686, 1029, 1306, 1372, 1959, 2058, 2612, 3918, 4116, 4571, 7836, 9142, 13713, 18284, 27426, 31997, 54852, 63994, 95991, 127988, 191982, 223979, 383964, 447958, 671937, 895916, 1343874, 2687748]

約数ペア:

[(1, 2687748), (2, 1343874), (3, 895916), (4, 671937), (6, 447958), (7, 383964), (12, 223979), (14, 191982), (21, 127988), (28, 95991), (42, 63994), (49, 54852), (84, 31997), (98, 27426), (147, 18284), (196, 13713), (294, 9142), (343, 7836), (588, 4571), (653, 4116), (686, 3918), (1029, 2612), (1306, 2058), (1372, 1959)]