20915648

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1093}}^1$

素因数の和:1141

約数の個数: 56

約数和(自身を含む): 46683168

約数和(自身を除く): 25767520

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 184, 208, 299, 368, 416, 598, 736, 832, 1093, 1196, 1472, 2186, 2392, 4372, 4784, 8744, 9568, 14209, 17488, 19136, 25139, 28418, 34976, 50278, 56836, 69952, 100556, 113672, 201112, 227344, 326807, 402224, 454688, 653614, 804448, 909376, 1307228, 1608896, 2614456, 5228912, 10457824, 20915648]

約数ペア:

[(1, 20915648), (2, 10457824), (4, 5228912), (8, 2614456), (13, 1608896), (16, 1307228), (23, 909376), (26, 804448), (32, 653614), (46, 454688), (52, 402224), (64, 326807), (92, 227344), (104, 201112), (184, 113672), (208, 100556), (299, 69952), (368, 56836), (416, 50278), (598, 34976), (736, 28418), (832, 25139), (1093, 19136), (1196, 17488), (1472, 14209), (2186, 9568), (2392, 8744), (4372, 4784)]