19709344

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{439}}^1$

素因数の和:533

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 21538016

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 61, 92, 122, 184, 244, 368, 439, 488, 736, 878, 976, 1403, 1756, 1952, 2806, 3512, 5612, 7024, 10097, 11224, 14048, 20194, 22448, 26779, 40388, 44896, 53558, 80776, 107116, 161552, 214232, 323104, 428464, 615917, 856928, 1231834, 2463668, 4927336, 9854672, 19709344]

約数ペア:

[(1, 19709344), (2, 9854672), (4, 4927336), (8, 2463668), (16, 1231834), (23, 856928), (32, 615917), (46, 428464), (61, 323104), (92, 214232), (122, 161552), (184, 107116), (244, 80776), (368, 53558), (439, 44896), (488, 40388), (736, 26779), (878, 22448), (976, 20194), (1403, 14048), (1756, 11224), (1952, 10097), (2806, 7024), (3512, 5612)]