21514980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1153}}^1$

素因数の和:1476

約数の個数: 48

約数和(自身を含む): 60488064

約数和(自身を除く): 38973084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 311, 622, 933, 1153, 1244, 1555, 1866, 2306, 3110, 3459, 3732, 4612, 4665, 5765, 6220, 6918, 9330, 11530, 13836, 17295, 18660, 23060, 34590, 69180, 358583, 717166, 1075749, 1434332, 1792915, 2151498, 3585830, 4302996, 5378745, 7171660, 10757490, 21514980]

約数ペア:

[(1, 21514980), (2, 10757490), (3, 7171660), (4, 5378745), (5, 4302996), (6, 3585830), (10, 2151498), (12, 1792915), (15, 1434332), (20, 1075749), (30, 717166), (60, 358583), (311, 69180), (622, 34590), (933, 23060), (1153, 18660), (1244, 17295), (1555, 13836), (1866, 11530), (2306, 9330), (3110, 6918), (3459, 6220), (3732, 5765), (4612, 4665)]