21868791

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2383}}^1$

素因数の和:2435

約数の個数: 32

約数和(自身を含む): 36618240

約数和(自身を除く): 14749449

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 2383, 3059, 7149, 9177, 16681, 45277, 50043, 54809, 135831, 164427, 316939, 383663, 950817, 1041371, 1150989, 3124113, 7289597, 21868791]

約数ペア:

[(1, 21868791), (3, 7289597), (7, 3124113), (19, 1150989), (21, 1041371), (23, 950817), (57, 383663), (69, 316939), (133, 164427), (161, 135831), (399, 54809), (437, 50043), (483, 45277), (1311, 16681), (2383, 9177), (3059, 7149)]