21274866

素因数分解:

$2^1\times 3^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28491534

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 71, 93, 142, 179, 186, 213, 279, 358, 426, 537, 558, 639, 837, 1074, 1278, 1611, 1674, 1917, 2201, 3222, 3834, 4402, 4833, 5549, 6603, 9666, 11098, 12709, 13206, 16647, 19809, 25418, 33294, 38127, 39618, 49941, 59427, 76254, 99882, 114381, 118854, 149823, 228762, 299646, 343143, 393979, 686286, 787958, 1181937, 2363874, 3545811, 7091622, 10637433, 21274866]

約数ペア:

[(1, 21274866), (2, 10637433), (3, 7091622), (6, 3545811), (9, 2363874), (18, 1181937), (27, 787958), (31, 686286), (54, 393979), (62, 343143), (71, 299646), (93, 228762), (142, 149823), (179, 118854), (186, 114381), (213, 99882), (279, 76254), (358, 59427), (426, 49941), (537, 39618), (558, 38127), (639, 33294), (837, 25418), (1074, 19809), (1278, 16647), (1611, 13206), (1674, 12709), (1917, 11098), (2201, 9666), (3222, 6603), (3834, 5549), (4402, 4833)]