19581008

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{373}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 40486248

約数和(自身を除く): 20905240

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 193, 272, 373, 386, 746, 772, 1492, 1544, 2984, 3088, 3281, 5968, 6341, 6562, 12682, 13124, 25364, 26248, 50728, 52496, 71989, 101456, 143978, 287956, 575912, 1151824, 1223813, 2447626, 4895252, 9790504, 19581008]

約数ペア:

[(1, 19581008), (2, 9790504), (4, 4895252), (8, 2447626), (16, 1223813), (17, 1151824), (34, 575912), (68, 287956), (136, 143978), (193, 101456), (272, 71989), (373, 52496), (386, 50728), (746, 26248), (772, 25364), (1492, 13124), (1544, 12682), (2984, 6562), (3088, 6341), (3281, 5968)]