1987213686

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{1877}}^1$

素因数の和:2189

約数の個数: 64

約数和(自身を含む): 4316094720

約数和(自身を除く): 2328881034

約数列:

[1, 2, 3, 6, 19, 37, 38, 57, 74, 111, 114, 222, 251, 502, 703, 753, 1406, 1506, 1877, 2109, 3754, 4218, 4769, 5631, 9287, 9538, 11262, 14307, 18574, 27861, 28614, 35663, 55722, 69449, 71326, 106989, 138898, 176453, 208347, 213978, 352906, 416694, 471127, 529359, 942254, 1058718, 1319531, 1413381, 2639062, 2826762, 3958593, 7917186, 8951413, 17431699, 17902826, 26854239, 34863398, 52295097, 53708478, 104590194, 331202281, 662404562, 993606843, 1987213686]

約数ペア:

[(1, 1987213686), (2, 993606843), (3, 662404562), (6, 331202281), (19, 104590194), (37, 53708478), (38, 52295097), (57, 34863398), (74, 26854239), (111, 17902826), (114, 17431699), (222, 8951413), (251, 7917186), (502, 3958593), (703, 2826762), (753, 2639062), (1406, 1413381), (1506, 1319531), (1877, 1058718), (2109, 942254), (3754, 529359), (4218, 471127), (4769, 416694), (5631, 352906), (9287, 213978), (9538, 208347), (11262, 176453), (14307, 138898), (18574, 106989), (27861, 71326), (28614, 69449), (35663, 55722)]