19981944

素因数分解:

$2^3\times 3^3\times {\mathrm{79}}^1\times {\mathrm{1171}}^1$

素因数の和:1265

約数の個数: 64

約数和(自身を含む): 56256000

約数和(自身を除く): 36274056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 79, 108, 158, 216, 237, 316, 474, 632, 711, 948, 1171, 1422, 1896, 2133, 2342, 2844, 3513, 4266, 4684, 5688, 7026, 8532, 9368, 10539, 14052, 17064, 21078, 28104, 31617, 42156, 63234, 84312, 92509, 126468, 185018, 252936, 277527, 370036, 555054, 740072, 832581, 1110108, 1665162, 2220216, 2497743, 3330324, 4995486, 6660648, 9990972, 19981944]

約数ペア:

[(1, 19981944), (2, 9990972), (3, 6660648), (4, 4995486), (6, 3330324), (8, 2497743), (9, 2220216), (12, 1665162), (18, 1110108), (24, 832581), (27, 740072), (36, 555054), (54, 370036), (72, 277527), (79, 252936), (108, 185018), (158, 126468), (216, 92509), (237, 84312), (316, 63234), (474, 42156), (632, 31617), (711, 28104), (948, 21078), (1171, 17064), (1422, 14052), (1896, 10539), (2133, 9368), (2342, 8532), (2844, 7026), (3513, 5688), (4266, 4684)]