21570136

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16747}}^1$

素因数の和:16783

約数の個数: 32

約数和(自身を含む): 48234240

約数和(自身を除く): 26664104

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 16747, 33494, 66988, 117229, 133976, 234458, 385181, 468916, 770362, 937832, 1540724, 2696267, 3081448, 5392534, 10785068, 21570136]

約数ペア:

[(1, 21570136), (2, 10785068), (4, 5392534), (7, 3081448), (8, 2696267), (14, 1540724), (23, 937832), (28, 770362), (46, 468916), (56, 385181), (92, 234458), (161, 133976), (184, 117229), (322, 66988), (644, 33494), (1288, 16747)]