20474493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 31194240

約数和(自身を除く): 10719747

約数列:

[1, 3, 13, 29, 39, 43, 87, 129, 377, 421, 559, 1131, 1247, 1263, 1677, 3741, 5473, 12209, 16211, 16419, 18103, 36627, 48633, 54309, 158717, 235339, 476151, 524987, 706017, 1574961, 6824831, 20474493]

約数ペア:

[(1, 20474493), (3, 6824831), (13, 1574961), (29, 706017), (39, 524987), (43, 476151), (87, 235339), (129, 158717), (377, 54309), (421, 48633), (559, 36627), (1131, 18103), (1247, 16419), (1263, 16211), (1677, 12209), (3741, 5473)]