21375740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1499}}^1$

素因数の和:1562

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 27008260

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1426, 1499, 2852, 2998, 3565, 5996, 7130, 7495, 14260, 14990, 29980, 34477, 46469, 68954, 92938, 137908, 172385, 185876, 232345, 344770, 464690, 689540, 929380, 1068787, 2137574, 4275148, 5343935, 10687870, 21375740]

約数ペア:

[(1, 21375740), (2, 10687870), (4, 5343935), (5, 4275148), (10, 2137574), (20, 1068787), (23, 929380), (31, 689540), (46, 464690), (62, 344770), (92, 232345), (115, 185876), (124, 172385), (155, 137908), (230, 92938), (310, 68954), (460, 46469), (620, 34477), (713, 29980), (1426, 14990), (1499, 14260), (2852, 7495), (2998, 7130), (3565, 5996)]