21039912

素因数分解:

$2^3\times 3^5\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 60278400

約数和(自身を除く): 39238488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 79, 81, 108, 137, 158, 162, 216, 237, 243, 274, 316, 324, 411, 474, 486, 548, 632, 648, 711, 822, 948, 972, 1096, 1233, 1422, 1644, 1896, 1944, 2133, 2466, 2844, 3288, 3699, 4266, 4932, 5688, 6399, 7398, 8532, 9864, 10823, 11097, 12798, 14796, 17064, 19197, 21646, 22194, 25596, 29592, 32469, 33291, 38394, 43292, 44388, 51192, 64938, 66582, 76788, 86584, 88776, 97407, 129876, 133164, 153576, 194814, 259752, 266328, 292221, 389628, 584442, 779256, 876663, 1168884, 1753326, 2337768, 2629989, 3506652, 5259978, 7013304, 10519956, 21039912]

約数ペア:

[(1, 21039912), (2, 10519956), (3, 7013304), (4, 5259978), (6, 3506652), (8, 2629989), (9, 2337768), (12, 1753326), (18, 1168884), (24, 876663), (27, 779256), (36, 584442), (54, 389628), (72, 292221), (79, 266328), (81, 259752), (108, 194814), (137, 153576), (158, 133164), (162, 129876), (216, 97407), (237, 88776), (243, 86584), (274, 76788), (316, 66582), (324, 64938), (411, 51192), (474, 44388), (486, 43292), (548, 38394), (632, 33291), (648, 32469), (711, 29592), (822, 25596), (948, 22194), (972, 21646), (1096, 19197), (1233, 17064), (1422, 14796), (1644, 12798), (1896, 11097), (1944, 10823), (2133, 9864), (2466, 8532), (2844, 7398), (3288, 6399), (3699, 5688), (4266, 4932)]