21841665

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 35982336

約数和(自身を除く): 14140671

約数列:

[1, 3, 5, 15, 67, 103, 201, 211, 309, 335, 515, 633, 1005, 1055, 1545, 3165, 6901, 14137, 20703, 21733, 34505, 42411, 65199, 70685, 103515, 108665, 212055, 325995, 1456111, 4368333, 7280555, 21841665]

約数ペア:

[(1, 21841665), (3, 7280555), (5, 4368333), (15, 1456111), (67, 325995), (103, 212055), (201, 108665), (211, 103515), (309, 70685), (335, 65199), (515, 42411), (633, 34505), (1005, 21733), (1055, 20703), (1545, 14137), (3165, 6901)]