21299148

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:735

約数の個数: 72

約数和(自身を含む): 58889376

約数和(自身を除く): 37590228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 71, 78, 117, 142, 156, 213, 234, 284, 426, 468, 639, 641, 852, 923, 1278, 1282, 1846, 1923, 2556, 2564, 2769, 3692, 3846, 5538, 5769, 7692, 8307, 8333, 11076, 11538, 16614, 16666, 23076, 24999, 33228, 33332, 45511, 49998, 74997, 91022, 99996, 136533, 149994, 182044, 273066, 299988, 409599, 546132, 591643, 819198, 1183286, 1638396, 1774929, 2366572, 3549858, 5324787, 7099716, 10649574, 21299148]

約数ペア:

[(1, 21299148), (2, 10649574), (3, 7099716), (4, 5324787), (6, 3549858), (9, 2366572), (12, 1774929), (13, 1638396), (18, 1183286), (26, 819198), (36, 591643), (39, 546132), (52, 409599), (71, 299988), (78, 273066), (117, 182044), (142, 149994), (156, 136533), (213, 99996), (234, 91022), (284, 74997), (426, 49998), (468, 45511), (639, 33332), (641, 33228), (852, 24999), (923, 23076), (1278, 16666), (1282, 16614), (1846, 11538), (1923, 11076), (2556, 8333), (2564, 8307), (2769, 7692), (3692, 5769), (3846, 5538)]