21576105

素因数分解:

$3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{883}}^1$

素因数の和:1078

約数の個数: 32

約数和(自身を含む): 38613120

約数和(自身を除く): 17037015

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 181, 543, 883, 905, 1629, 2649, 2715, 4415, 4887, 7947, 8145, 13245, 23841, 24435, 39735, 119205, 159823, 479469, 799115, 1438407, 2397345, 4315221, 7192035, 21576105]

約数ペア:

[(1, 21576105), (3, 7192035), (5, 4315221), (9, 2397345), (15, 1438407), (27, 799115), (45, 479469), (135, 159823), (181, 119205), (543, 39735), (883, 24435), (905, 23841), (1629, 13245), (2649, 8145), (2715, 7947), (4415, 4887)]