21515778

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{70313}}^1$

素因数の和:70338

約数の個数: 24

約数和(自身を含む): 49360428

約数和(自身を除く): 27844650

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 70313, 140626, 210939, 421878, 632817, 1195321, 1265634, 2390642, 3585963, 7171926, 10757889, 21515778]

約数ペア:

[(1, 21515778), (2, 10757889), (3, 7171926), (6, 3585963), (9, 2390642), (17, 1265634), (18, 1195321), (34, 632817), (51, 421878), (102, 210939), (153, 140626), (306, 70313)]