74652921

素因数分解:

$3^4\times 7^3\times {\mathrm{2687}}^1$

素因数の和:2720

約数の個数: 40

約数和(自身を含む): 130099200

約数和(自身を除く): 55446279

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 2687, 3087, 3969, 8061, 9261, 18809, 24183, 27783, 56427, 72549, 131663, 169281, 217647, 394989, 507843, 921641, 1184967, 1523529, 2764923, 3554901, 8294769, 10664703, 24884307, 74652921]

約数ペア:

[(1, 74652921), (3, 24884307), (7, 10664703), (9, 8294769), (21, 3554901), (27, 2764923), (49, 1523529), (63, 1184967), (81, 921641), (147, 507843), (189, 394989), (343, 217647), (441, 169281), (567, 131663), (1029, 72549), (1323, 56427), (2687, 27783), (3087, 24183), (3969, 18809), (8061, 9261)]