19864304

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1381}}^1$

素因数の和:1449

約数の個数: 40

約数和(自身を含む): 41128320

約数和(自身を除く): 21264016

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 116, 124, 232, 248, 464, 496, 899, 1381, 1798, 2762, 3596, 5524, 7192, 11048, 14384, 22096, 40049, 42811, 80098, 85622, 160196, 171244, 320392, 342488, 640784, 684976, 1241519, 2483038, 4966076, 9932152, 19864304]

約数ペア:

[(1, 19864304), (2, 9932152), (4, 4966076), (8, 2483038), (16, 1241519), (29, 684976), (31, 640784), (58, 342488), (62, 320392), (116, 171244), (124, 160196), (232, 85622), (248, 80098), (464, 42811), (496, 40049), (899, 22096), (1381, 14384), (1798, 11048), (2762, 7192), (3596, 5524)]