19777788

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{11689}}^1$

素因数の和:11746

約数の個数: 36

約数和(自身を含む): 51061920

約数和(自身を除く): 31284132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692, 11689, 23378, 35067, 46756, 70134, 105201, 140268, 210402, 420804, 549383, 1098766, 1648149, 2197532, 3296298, 4944447, 6592596, 9888894, 19777788]

約数ペア:

[(1, 19777788), (2, 9888894), (3, 6592596), (4, 4944447), (6, 3296298), (9, 2197532), (12, 1648149), (18, 1098766), (36, 549383), (47, 420804), (94, 210402), (141, 140268), (188, 105201), (282, 70134), (423, 46756), (564, 35067), (846, 23378), (1692, 11689)]