20844725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{331}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 28405920

約数和(自身を除く): 7561195

約数列:

[1, 5, 11, 25, 55, 229, 275, 331, 1145, 1655, 2519, 3641, 5725, 8275, 12595, 18205, 62975, 75799, 91025, 378995, 833789, 1894975, 4168945, 20844725]

約数ペア:

[(1, 20844725), (5, 4168945), (11, 1894975), (25, 833789), (55, 378995), (229, 91025), (275, 75799), (331, 62975), (1145, 18205), (1655, 12595), (2519, 8275), (3641, 5725)]