19894113

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 30712320

約数和(自身を除く): 10818207

約数列:

[1, 3, 9, 27, 47, 61, 141, 183, 257, 423, 549, 771, 1269, 1647, 2313, 2867, 6939, 8601, 12079, 15677, 25803, 36237, 47031, 77409, 108711, 141093, 326133, 423279, 736819, 2210457, 6631371, 19894113]

約数ペア:

[(1, 19894113), (3, 6631371), (9, 2210457), (27, 736819), (47, 423279), (61, 326133), (141, 141093), (183, 108711), (257, 77409), (423, 47031), (549, 36237), (771, 25803), (1269, 15677), (1647, 12079), (2313, 8601), (2867, 6939)]