21977055

素因数分解:

$3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{941}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 39337920

約数和(自身を除く): 17360865

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 173, 519, 865, 941, 1557, 2595, 2823, 4671, 4705, 7785, 8469, 14115, 23355, 25407, 42345, 127035, 162793, 488379, 813965, 1465137, 2441895, 4395411, 7325685, 21977055]

約数ペア:

[(1, 21977055), (3, 7325685), (5, 4395411), (9, 2441895), (15, 1465137), (27, 813965), (45, 488379), (135, 162793), (173, 127035), (519, 42345), (865, 25407), (941, 23355), (1557, 14115), (2595, 8469), (2823, 7785), (4671, 4705)]