20994984

素因数分解:

$2^3\times 3^3\times {\mathrm{37}}^2\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 96

約数和(自身を含む): 60782400

約数和(自身を除く): 39787416

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 71, 72, 74, 108, 111, 142, 148, 213, 216, 222, 284, 296, 333, 426, 444, 568, 639, 666, 852, 888, 999, 1278, 1332, 1369, 1704, 1917, 1998, 2556, 2627, 2664, 2738, 3834, 3996, 4107, 5112, 5254, 5476, 7668, 7881, 7992, 8214, 10508, 10952, 12321, 15336, 15762, 16428, 21016, 23643, 24642, 31524, 32856, 36963, 47286, 49284, 63048, 70929, 73926, 94572, 97199, 98568, 141858, 147852, 189144, 194398, 283716, 291597, 295704, 388796, 567432, 583194, 777592, 874791, 1166388, 1749582, 2332776, 2624373, 3499164, 5248746, 6998328, 10497492, 20994984]

約数ペア:

[(1, 20994984), (2, 10497492), (3, 6998328), (4, 5248746), (6, 3499164), (8, 2624373), (9, 2332776), (12, 1749582), (18, 1166388), (24, 874791), (27, 777592), (36, 583194), (37, 567432), (54, 388796), (71, 295704), (72, 291597), (74, 283716), (108, 194398), (111, 189144), (142, 147852), (148, 141858), (213, 98568), (216, 97199), (222, 94572), (284, 73926), (296, 70929), (333, 63048), (426, 49284), (444, 47286), (568, 36963), (639, 32856), (666, 31524), (852, 24642), (888, 23643), (999, 21016), (1278, 16428), (1332, 15762), (1369, 15336), (1704, 12321), (1917, 10952), (1998, 10508), (2556, 8214), (2627, 7992), (2664, 7881), (2738, 7668), (3834, 5476), (3996, 5254), (4107, 5112)]