21455930

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{563}}^1$

素因数の和:710

約数の個数: 32

約数和(自身を含む): 40120704

約数和(自身を除く): 18664774

約数列:

[1, 2, 5, 10, 37, 74, 103, 185, 206, 370, 515, 563, 1030, 1126, 2815, 3811, 5630, 7622, 19055, 20831, 38110, 41662, 57989, 104155, 115978, 208310, 289945, 579890, 2145593, 4291186, 10727965, 21455930]

約数ペア:

[(1, 21455930), (2, 10727965), (5, 4291186), (10, 2145593), (37, 579890), (74, 289945), (103, 208310), (185, 115978), (206, 104155), (370, 57989), (515, 41662), (563, 38110), (1030, 20831), (1126, 19055), (2815, 7622), (3811, 5630)]