21482450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 44059680

約数和(自身を除く): 22577230

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 139, 275, 278, 281, 550, 562, 695, 1390, 1405, 1529, 2810, 3058, 3091, 3475, 6182, 6950, 7025, 7645, 14050, 15290, 15455, 30910, 38225, 39059, 76450, 77275, 78118, 154550, 195295, 390590, 429649, 859298, 976475, 1952950, 2148245, 4296490, 10741225, 21482450]

約数ペア:

[(1, 21482450), (2, 10741225), (5, 4296490), (10, 2148245), (11, 1952950), (22, 976475), (25, 859298), (50, 429649), (55, 390590), (110, 195295), (139, 154550), (275, 78118), (278, 77275), (281, 76450), (550, 39059), (562, 38225), (695, 30910), (1390, 15455), (1405, 15290), (1529, 14050), (2810, 7645), (3058, 7025), (3091, 6950), (3475, 6182)]