21660368

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{22193}}^1$

素因数の和:22262

約数の個数: 20

約数和(自身を含む): 42656868

約数和(自身を除く): 20996500

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 22193, 44386, 88772, 177544, 355088, 1353773, 2707546, 5415092, 10830184, 21660368]

約数ペア:

[(1, 21660368), (2, 10830184), (4, 5415092), (8, 2707546), (16, 1353773), (61, 355088), (122, 177544), (244, 88772), (488, 44386), (976, 22193)]