21261384

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:419

約数の個数: 96

約数和(自身を含む): 61888320

約数和(自身を除く): 40626936

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 37, 46, 69, 72, 74, 92, 111, 138, 148, 184, 207, 222, 276, 296, 333, 347, 414, 444, 552, 666, 694, 828, 851, 888, 1041, 1332, 1388, 1656, 1702, 2082, 2553, 2664, 2776, 3123, 3404, 4164, 5106, 6246, 6808, 7659, 7981, 8328, 10212, 12492, 12839, 15318, 15962, 20424, 23943, 24984, 25678, 30636, 31924, 38517, 47886, 51356, 61272, 63848, 71829, 77034, 95772, 102712, 115551, 143658, 154068, 191544, 231102, 287316, 295297, 308136, 462204, 574632, 590594, 885891, 924408, 1181188, 1771782, 2362376, 2657673, 3543564, 5315346, 7087128, 10630692, 21261384]

約数ペア:

[(1, 21261384), (2, 10630692), (3, 7087128), (4, 5315346), (6, 3543564), (8, 2657673), (9, 2362376), (12, 1771782), (18, 1181188), (23, 924408), (24, 885891), (36, 590594), (37, 574632), (46, 462204), (69, 308136), (72, 295297), (74, 287316), (92, 231102), (111, 191544), (138, 154068), (148, 143658), (184, 115551), (207, 102712), (222, 95772), (276, 77034), (296, 71829), (333, 63848), (347, 61272), (414, 51356), (444, 47886), (552, 38517), (666, 31924), (694, 30636), (828, 25678), (851, 24984), (888, 23943), (1041, 20424), (1332, 15962), (1388, 15318), (1656, 12839), (1702, 12492), (2082, 10212), (2553, 8328), (2664, 7981), (2776, 7659), (3123, 6808), (3404, 6246), (4164, 5106)]