20129958

素因数分解:

$2^1\times 3^4\times {\mathrm{137}}^1\times {\mathrm{907}}^1$

素因数の和:1058

約数の個数: 40

約数和(自身を含む): 45485352

約数和(自身を除く): 25355394

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 137, 162, 274, 411, 822, 907, 1233, 1814, 2466, 2721, 3699, 5442, 7398, 8163, 11097, 16326, 22194, 24489, 48978, 73467, 124259, 146934, 248518, 372777, 745554, 1118331, 2236662, 3354993, 6709986, 10064979, 20129958]

約数ペア:

[(1, 20129958), (2, 10064979), (3, 6709986), (6, 3354993), (9, 2236662), (18, 1118331), (27, 745554), (54, 372777), (81, 248518), (137, 146934), (162, 124259), (274, 73467), (411, 48978), (822, 24489), (907, 22194), (1233, 16326), (1814, 11097), (2466, 8163), (2721, 7398), (3699, 5442)]