21317366

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{277}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 38430720

約数和(自身を除く): 17113354

約数列:

[1, 2, 7, 14, 23, 46, 161, 239, 277, 322, 478, 554, 1673, 1939, 3346, 3878, 5497, 6371, 10994, 12742, 38479, 44597, 66203, 76958, 89194, 132406, 463421, 926842, 1522669, 3045338, 10658683, 21317366]

約数ペア:

[(1, 21317366), (2, 10658683), (7, 3045338), (14, 1522669), (23, 926842), (46, 463421), (161, 132406), (239, 89194), (277, 76958), (322, 66203), (478, 44597), (554, 38479), (1673, 12742), (1939, 10994), (3346, 6371), (3878, 5497)]