21875403

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 11993397

約数列:

[1, 3, 11, 19, 33, 57, 139, 209, 251, 417, 627, 753, 1529, 2641, 2761, 4587, 4769, 7923, 8283, 14307, 29051, 34889, 52459, 87153, 104667, 157377, 383779, 662891, 1151337, 1988673, 7291801, 21875403]

約数ペア:

[(1, 21875403), (3, 7291801), (11, 1988673), (19, 1151337), (33, 662891), (57, 383779), (139, 157377), (209, 104667), (251, 87153), (417, 52459), (627, 34889), (753, 29051), (1529, 14307), (2641, 8283), (2761, 7923), (4587, 4769)]