21849777

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 12744783

約数列:

[1, 3, 9, 17, 27, 51, 153, 181, 263, 459, 543, 789, 1629, 2367, 3077, 4471, 4887, 7101, 9231, 13413, 27693, 40239, 47603, 83079, 120717, 142809, 428427, 809251, 1285281, 2427753, 7283259, 21849777]

約数ペア:

[(1, 21849777), (3, 7283259), (9, 2427753), (17, 1285281), (27, 809251), (51, 428427), (153, 142809), (181, 120717), (263, 83079), (459, 47603), (543, 40239), (789, 27693), (1629, 13413), (2367, 9231), (3077, 7101), (4471, 4887)]