21547045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 29836800

約数和(自身を除く): 8289755

約数列:

[1, 5, 13, 19, 65, 73, 95, 239, 247, 365, 949, 1195, 1235, 1387, 3107, 4541, 4745, 6935, 15535, 17447, 18031, 22705, 59033, 87235, 90155, 226811, 295165, 331493, 1134055, 1657465, 4309409, 21547045]

約数ペア:

[(1, 21547045), (5, 4309409), (13, 1657465), (19, 1134055), (65, 331493), (73, 295165), (95, 226811), (239, 90155), (247, 87235), (365, 59033), (949, 22705), (1195, 18031), (1235, 17447), (1387, 15535), (3107, 6935), (4541, 4745)]