18719192

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 36158400

約数和(自身を除く): 17439208

約数列:

[1, 2, 4, 8, 61, 89, 122, 178, 244, 356, 431, 488, 712, 862, 1724, 3448, 5429, 10858, 21716, 26291, 38359, 43432, 52582, 76718, 105164, 153436, 210328, 306872, 2339899, 4679798, 9359596, 18719192]

約数ペア:

[(1, 18719192), (2, 9359596), (4, 4679798), (8, 2339899), (61, 306872), (89, 210328), (122, 153436), (178, 105164), (244, 76718), (356, 52582), (431, 43432), (488, 38359), (712, 26291), (862, 21716), (1724, 10858), (3448, 5429)]