212156763

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{1361}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 349020672

約数和(自身を除く): 136863909

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 571, 1361, 1713, 3997, 4083, 7423, 9527, 11991, 17693, 22269, 28581, 51961, 53079, 123851, 155883, 371553, 777131, 2331393, 5439917, 10102703, 16319751, 30308109, 70718921, 212156763]

約数ペア:

[(1, 212156763), (3, 70718921), (7, 30308109), (13, 16319751), (21, 10102703), (39, 5439917), (91, 2331393), (273, 777131), (571, 371553), (1361, 155883), (1713, 123851), (3997, 53079), (4083, 51961), (7423, 28581), (9527, 22269), (11991, 17693)]