21095087111

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{509}}^1\times {\mathrm{577}}^1$

素因数の和:1455

約数の個数: 32

約数和(自身を含む): 25053941760

約数和(自身を除く): 3958854649

約数列:

[1, 7, 31, 217, 331, 509, 577, 2317, 3563, 4039, 10261, 15779, 17887, 71827, 110453, 125209, 168479, 190987, 293693, 1179353, 1336909, 2055851, 5222849, 5920597, 9104483, 36559943, 41444179, 63731381, 97212383, 680486681, 3013583873, 21095087111]

約数ペア:

[(1, 21095087111), (7, 3013583873), (31, 680486681), (217, 97212383), (331, 63731381), (509, 41444179), (577, 36559943), (2317, 9104483), (3563, 5920597), (4039, 5222849), (10261, 2055851), (15779, 1336909), (17887, 1179353), (71827, 293693), (110453, 190987), (125209, 168479)]