19556368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{563}}^1$

素因数の和:751

約数の個数: 40

約数和(自身を含む): 41122368

約数和(自身を除く): 21566000

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 167, 208, 334, 563, 668, 1126, 1336, 2171, 2252, 2672, 4342, 4504, 7319, 8684, 9008, 14638, 17368, 29276, 34736, 58552, 94021, 117104, 188042, 376084, 752168, 1222273, 1504336, 2444546, 4889092, 9778184, 19556368]

約数ペア:

[(1, 19556368), (2, 9778184), (4, 4889092), (8, 2444546), (13, 1504336), (16, 1222273), (26, 752168), (52, 376084), (104, 188042), (167, 117104), (208, 94021), (334, 58552), (563, 34736), (668, 29276), (1126, 17368), (1336, 14638), (2171, 9008), (2252, 8684), (2672, 7319), (4342, 4504)]