21054026

素因数分解:

$2^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 37670400

約数和(自身を除く): 16616374

約数列:

[1, 2, 7, 14, 47, 49, 94, 98, 329, 343, 653, 658, 686, 1306, 2303, 4571, 4606, 9142, 16121, 30691, 31997, 32242, 61382, 63994, 214837, 223979, 429674, 447958, 1503859, 3007718, 10527013, 21054026]

約数ペア:

[(1, 21054026), (2, 10527013), (7, 3007718), (14, 1503859), (47, 447958), (49, 429674), (94, 223979), (98, 214837), (329, 63994), (343, 61382), (653, 32242), (658, 31997), (686, 30691), (1306, 16121), (2303, 9142), (4571, 4606)]