21702460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83471}}^1$

素因数の和:83493

約数の個数: 24

約数和(自身を含む): 49081536

約数和(自身を除く): 27379076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 83471, 166942, 333884, 417355, 834710, 1085123, 1669420, 2170246, 4340492, 5425615, 10851230, 21702460]

約数ペア:

[(1, 21702460), (2, 10851230), (4, 5425615), (5, 4340492), (10, 2170246), (13, 1669420), (20, 1085123), (26, 834710), (52, 417355), (65, 333884), (130, 166942), (260, 83471)]