21855618

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{281}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 49491000

約数和(自身を除く): 27635382

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 149, 174, 261, 281, 298, 447, 522, 562, 843, 894, 1341, 1686, 2529, 2682, 4321, 5058, 8149, 8642, 12963, 16298, 24447, 25926, 38889, 41869, 48894, 73341, 77778, 83738, 125607, 146682, 251214, 376821, 753642, 1214201, 2428402, 3642603, 7285206, 10927809, 21855618]

約数ペア:

[(1, 21855618), (2, 10927809), (3, 7285206), (6, 3642603), (9, 2428402), (18, 1214201), (29, 753642), (58, 376821), (87, 251214), (149, 146682), (174, 125607), (261, 83738), (281, 77778), (298, 73341), (447, 48894), (522, 41869), (562, 38889), (843, 25926), (894, 24447), (1341, 16298), (1686, 12963), (2529, 8642), (2682, 8149), (4321, 5058)]