21407580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{118931}}^1$

素因数の和:118946

約数の個数: 36

約数和(自身を含む): 64936872

約数和(自身を除く): 43529292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 118931, 237862, 356793, 475724, 594655, 713586, 1070379, 1189310, 1427172, 1783965, 2140758, 2378620, 3567930, 4281516, 5351895, 7135860, 10703790, 21407580]

約数ペア:

[(1, 21407580), (2, 10703790), (3, 7135860), (4, 5351895), (5, 4281516), (6, 3567930), (9, 2378620), (10, 2140758), (12, 1783965), (15, 1427172), (18, 1189310), (20, 1070379), (30, 713586), (36, 594655), (45, 475724), (60, 356793), (90, 237862), (180, 118931)]