21696795

素因数分解:

$3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{929}}^1$

素因数の和:1116

約数の個数: 32

約数和(自身を含む): 38836800

約数和(自身を除く): 17140005

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 173, 519, 865, 929, 1557, 2595, 2787, 4645, 4671, 7785, 8361, 13935, 23355, 25083, 41805, 125415, 160717, 482151, 803585, 1446453, 2410755, 4339359, 7232265, 21696795]

約数ペア:

[(1, 21696795), (3, 7232265), (5, 4339359), (9, 2410755), (15, 1446453), (27, 803585), (45, 482151), (135, 160717), (173, 125415), (519, 41805), (865, 25083), (929, 23355), (1557, 13935), (2595, 8361), (2787, 7785), (4645, 4671)]