21334832

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:381

約数の個数: 40

約数和(自身を含む): 42653520

約数和(自身を除く): 21318688

約数列:

[1, 2, 4, 8, 16, 53, 106, 139, 181, 212, 278, 362, 424, 556, 724, 848, 1112, 1448, 2224, 2896, 7367, 9593, 14734, 19186, 25159, 29468, 38372, 50318, 58936, 76744, 100636, 117872, 153488, 201272, 402544, 1333427, 2666854, 5333708, 10667416, 21334832]

約数ペア:

[(1, 21334832), (2, 10667416), (4, 5333708), (8, 2666854), (16, 1333427), (53, 402544), (106, 201272), (139, 153488), (181, 117872), (212, 100636), (278, 76744), (362, 58936), (424, 50318), (556, 38372), (724, 29468), (848, 25159), (1112, 19186), (1448, 14734), (2224, 9593), (2896, 7367)]