1993761

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1$

素因数の和:171

約数の個数: 48

約数和(自身を含む): 3775680

約数和(自身を除く): 1781919

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 137, 147, 189, 231, 297, 411, 441, 539, 693, 959, 1233, 1323, 1507, 1617, 2079, 2877, 3699, 4521, 4851, 6713, 8631, 10549, 13563, 14553, 20139, 25893, 31647, 40689, 60417, 73843, 94941, 181251, 221529, 284823, 664587, 1993761]

約数ペア:

[(1, 1993761), (3, 664587), (7, 284823), (9, 221529), (11, 181251), (21, 94941), (27, 73843), (33, 60417), (49, 40689), (63, 31647), (77, 25893), (99, 20139), (137, 14553), (147, 13563), (189, 10549), (231, 8631), (297, 6713), (411, 4851), (441, 4521), (539, 3699), (693, 2877), (959, 2079), (1233, 1617), (1323, 1507)]