21307095

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4597}}^1$

素因数の和:4711

約数の個数: 24

約数和(自身を含む): 37298976

約数和(自身を除く): 15991881

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4597, 4635, 13791, 22985, 41373, 68955, 206865, 473491, 1420473, 2367455, 4261419, 7102365, 21307095]

約数ペア:

[(1, 21307095), (3, 7102365), (5, 4261419), (9, 2367455), (15, 1420473), (45, 473491), (103, 206865), (309, 68955), (515, 41373), (927, 22985), (1545, 13791), (4597, 4635)]