21497465591

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{7759}}^1\times {\mathrm{17209}}^1$

素因数の和:24998

約数の個数: 16

約数和(自身を含む): 25641523200

約数和(自身を除く): 4144057609

約数列:

[1, 7, 23, 161, 7759, 17209, 54313, 120463, 178457, 395807, 1249199, 2770649, 133524631, 934672417, 3071066513, 21497465591]

約数ペア:

[(1, 21497465591), (7, 3071066513), (23, 934672417), (161, 133524631), (7759, 2770649), (17209, 1249199), (54313, 395807), (120463, 178457)]