18439376

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 37765440

約数和(自身を除く): 19326064

約数列:

[1, 2, 4, 8, 16, 23, 46, 89, 92, 178, 184, 356, 368, 563, 712, 1126, 1424, 2047, 2252, 4094, 4504, 8188, 9008, 12949, 16376, 25898, 32752, 50107, 51796, 100214, 103592, 200428, 207184, 400856, 801712, 1152461, 2304922, 4609844, 9219688, 18439376]

約数ペア:

[(1, 18439376), (2, 9219688), (4, 4609844), (8, 2304922), (16, 1152461), (23, 801712), (46, 400856), (89, 207184), (92, 200428), (178, 103592), (184, 100214), (356, 51796), (368, 50107), (563, 32752), (712, 25898), (1126, 16376), (1424, 12949), (2047, 9008), (2252, 8188), (4094, 4504)]