20162421

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 30588480

約数和(自身を除く): 10426059

約数列:

[1, 3, 9, 23, 69, 207, 257, 379, 771, 1137, 2313, 3411, 5911, 8717, 17733, 26151, 53199, 78453, 97403, 292209, 876627, 2240269, 6720807, 20162421]

約数ペア:

[(1, 20162421), (3, 6720807), (9, 2240269), (23, 876627), (69, 292209), (207, 97403), (257, 78453), (379, 53199), (771, 26151), (1137, 17733), (2313, 8717), (3411, 5911)]