21765388

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{569}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 38974320

約数和(自身を除く): 17208932

約数列:

[1, 2, 4, 73, 131, 146, 262, 292, 524, 569, 1138, 2276, 9563, 19126, 38252, 41537, 74539, 83074, 149078, 166148, 298156, 5441347, 10882694, 21765388]

約数ペア:

[(1, 21765388), (2, 10882694), (4, 5441347), (73, 298156), (131, 166148), (146, 149078), (262, 83074), (292, 74539), (524, 41537), (569, 38252), (1138, 19126), (2276, 9563)]