20189744

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{373}}^1$

素因数の和:597

約数の個数: 40

約数和(自身を含む): 41738400

約数和(自身を除く): 21548656

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 199, 272, 373, 398, 746, 796, 1492, 1592, 2984, 3184, 3383, 5968, 6341, 6766, 12682, 13532, 25364, 27064, 50728, 54128, 74227, 101456, 148454, 296908, 593816, 1187632, 1261859, 2523718, 5047436, 10094872, 20189744]

約数ペア:

[(1, 20189744), (2, 10094872), (4, 5047436), (8, 2523718), (16, 1261859), (17, 1187632), (34, 593816), (68, 296908), (136, 148454), (199, 101456), (272, 74227), (373, 54128), (398, 50728), (746, 27064), (796, 25364), (1492, 13532), (1592, 12682), (2984, 6766), (3184, 6341), (3383, 5968)]