212444253

素因数分解:

$3^2\times 7^3\times {\mathrm{68819}}^1$

素因数の和:68846

約数の個数: 24

約数和(自身を含む): 357864000

約数和(自身を除く): 145419747

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 68819, 206457, 481733, 619371, 1445199, 3372131, 4335597, 10116393, 23604917, 30349179, 70814751, 212444253]

約数ペア:

[(1, 212444253), (3, 70814751), (7, 30349179), (9, 23604917), (21, 10116393), (49, 4335597), (63, 3372131), (147, 1445199), (343, 619371), (441, 481733), (1029, 206457), (3087, 68819)]