21473168

素因数分解:

$2^4\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:156

約数の個数: 60

約数和(自身を含む): 45257520

約数和(自身を除く): 23784352

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 59, 86, 92, 118, 172, 184, 236, 344, 368, 472, 529, 688, 944, 989, 1058, 1357, 1978, 2116, 2537, 2714, 3956, 4232, 5074, 5428, 7912, 8464, 10148, 10856, 15824, 20296, 21712, 22747, 31211, 40592, 45494, 58351, 62422, 90988, 116702, 124844, 181976, 233404, 249688, 363952, 466808, 499376, 933616, 1342073, 2684146, 5368292, 10736584, 21473168]

約数ペア:

[(1, 21473168), (2, 10736584), (4, 5368292), (8, 2684146), (16, 1342073), (23, 933616), (43, 499376), (46, 466808), (59, 363952), (86, 249688), (92, 233404), (118, 181976), (172, 124844), (184, 116702), (236, 90988), (344, 62422), (368, 58351), (472, 45494), (529, 40592), (688, 31211), (944, 22747), (989, 21712), (1058, 20296), (1357, 15824), (1978, 10856), (2116, 10148), (2537, 8464), (2714, 7912), (3956, 5428), (4232, 5074)]