65520021

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{66383}}^1$

素因数の和:66440

約数の個数: 16

約数和(自身を含む): 101965824

約数和(自身を除く): 36445803

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 66383, 199149, 464681, 1394043, 3120001, 9360003, 21840007, 65520021]

約数ペア:

[(1, 65520021), (3, 21840007), (7, 9360003), (21, 3120001), (47, 1394043), (141, 464681), (329, 199149), (987, 66383)]