21685993994

素因数分解:

$2^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{4175201}}^1$

素因数の和:4175270

約数の個数: 24

約数和(自身を含む): 38553815268

約数和(自身を除く): 16867821274

約数列:

[1, 2, 7, 14, 49, 53, 98, 106, 371, 742, 2597, 5194, 4175201, 8350402, 29226407, 58452814, 204584849, 221285653, 409169698, 442571306, 1548999571, 3097999142, 10842996997, 21685993994]

約数ペア:

[(1, 21685993994), (2, 10842996997), (7, 3097999142), (14, 1548999571), (49, 442571306), (53, 409169698), (98, 221285653), (106, 204584849), (371, 58452814), (742, 29226407), (2597, 8350402), (5194, 4175201)]