21063848

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{601}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 42729960

約数和(自身を除く): 21666112

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 337, 601, 674, 1202, 1348, 2404, 2696, 4381, 4808, 7813, 8762, 15626, 17524, 31252, 35048, 62504, 202537, 405074, 810148, 1620296, 2632981, 5265962, 10531924, 21063848]

約数ペア:

[(1, 21063848), (2, 10531924), (4, 5265962), (8, 2632981), (13, 1620296), (26, 810148), (52, 405074), (104, 202537), (337, 62504), (601, 35048), (674, 31252), (1202, 17524), (1348, 15626), (2404, 8762), (2696, 7813), (4381, 4808)]