21485139

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1367}}^1$

素因数の和:1427

約数の個数: 24

約数和(自身を含む): 32044032

約数和(自身を除く): 10558893

約数列:

[1, 3, 13, 31, 39, 93, 169, 403, 507, 1209, 1367, 4101, 5239, 15717, 17771, 42377, 53313, 127131, 231023, 550901, 693069, 1652703, 7161713, 21485139]

約数ペア:

[(1, 21485139), (3, 7161713), (13, 1652703), (31, 693069), (39, 550901), (93, 231023), (169, 127131), (403, 53313), (507, 42377), (1209, 17771), (1367, 15717), (4101, 5239)]