20474894

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 36612240

約数和(自身を除く): 16137346

約数列:

[1, 2, 11, 19, 22, 38, 61, 73, 121, 122, 146, 209, 242, 418, 671, 803, 1159, 1342, 1387, 1606, 2299, 2318, 2774, 4453, 4598, 7381, 8833, 8906, 12749, 14762, 15257, 17666, 25498, 30514, 48983, 84607, 97966, 140239, 167827, 169214, 280478, 335654, 538813, 930677, 1077626, 1861354, 10237447, 20474894]

約数ペア:

[(1, 20474894), (2, 10237447), (11, 1861354), (19, 1077626), (22, 930677), (38, 538813), (61, 335654), (73, 280478), (121, 169214), (122, 167827), (146, 140239), (209, 97966), (242, 84607), (418, 48983), (671, 30514), (803, 25498), (1159, 17666), (1342, 15257), (1387, 14762), (1606, 12749), (2299, 8906), (2318, 8833), (2774, 7381), (4453, 4598)]