18887847

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 28512000

約数和(自身を除く): 9624153

約数列:

[1, 3, 11, 33, 59, 89, 109, 177, 267, 327, 649, 979, 1199, 1947, 2937, 3597, 5251, 6431, 9701, 15753, 19293, 29103, 57761, 70741, 106711, 173283, 212223, 320133, 572359, 1717077, 6295949, 18887847]

約数ペア:

[(1, 18887847), (3, 6295949), (11, 1717077), (33, 572359), (59, 320133), (89, 212223), (109, 173283), (177, 106711), (267, 70741), (327, 57761), (649, 29103), (979, 19293), (1199, 15753), (1947, 9701), (2937, 6431), (3597, 5251)]