19904603607

素因数分解:

$3^6\times 7^1\times {\mathrm{3900569}}^1$

素因数の和:3900594

約数の個数: 28

約数和(自身を含む): 34106584080

約数和(自身を除く): 14201980473

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 3900569, 11701707, 27303983, 35105121, 81911949, 105315363, 245735847, 315946089, 737207541, 947838267, 2211622623, 2843514801, 6634867869, 19904603607]

約数ペア:

[(1, 19904603607), (3, 6634867869), (7, 2843514801), (9, 2211622623), (21, 947838267), (27, 737207541), (63, 315946089), (81, 245735847), (189, 105315363), (243, 81911949), (567, 35105121), (729, 27303983), (1701, 11701707), (5103, 3900569)]