20474013

素因数分解:

$3^1\times 7^3\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 32313600

約数和(自身を除く): 11839587

約数列:

[1, 3, 7, 21, 49, 101, 147, 197, 303, 343, 591, 707, 1029, 1379, 2121, 4137, 4949, 9653, 14847, 19897, 28959, 34643, 59691, 67571, 103929, 139279, 202713, 417837, 974953, 2924859, 6824671, 20474013]

約数ペア:

[(1, 20474013), (3, 6824671), (7, 2924859), (21, 974953), (49, 417837), (101, 202713), (147, 139279), (197, 103929), (303, 67571), (343, 59691), (591, 34643), (707, 28959), (1029, 19897), (1379, 14847), (2121, 9653), (4137, 4949)]