21209778

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{69313}}^1$

素因数の和:69338

約数の個数: 24

約数和(自身を含む): 48658428

約数和(自身を除く): 27448650

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 69313, 138626, 207939, 415878, 623817, 1178321, 1247634, 2356642, 3534963, 7069926, 10604889, 21209778]

約数ペア:

[(1, 21209778), (2, 10604889), (3, 7069926), (6, 3534963), (9, 2356642), (17, 1247634), (18, 1178321), (34, 623817), (51, 415878), (102, 207939), (153, 138626), (306, 69313)]