21820386

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{74219}}^1$

素因数の和:74238

約数の個数: 24

約数和(自身を含む): 50766480

約数和(自身を除く): 28946094

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 74219, 148438, 222657, 445314, 519533, 1039066, 1558599, 3117198, 3636731, 7273462, 10910193, 21820386]

約数ペア:

[(1, 21820386), (2, 10910193), (3, 7273462), (6, 3636731), (7, 3117198), (14, 1558599), (21, 1039066), (42, 519533), (49, 445314), (98, 222657), (147, 148438), (294, 74219)]