19899390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13537}}^1$

素因数の和:13561

約数の個数: 48

約数和(自身を含む): 55559952

約数和(自身を除く): 35660562

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13537, 27074, 40611, 67685, 81222, 94759, 135370, 189518, 203055, 284277, 406110, 473795, 568554, 663313, 947590, 1326626, 1421385, 1989939, 2842770, 3316565, 3979878, 6633130, 9949695, 19899390]

約数ペア:

[(1, 19899390), (2, 9949695), (3, 6633130), (5, 3979878), (6, 3316565), (7, 2842770), (10, 1989939), (14, 1421385), (15, 1326626), (21, 947590), (30, 663313), (35, 568554), (42, 473795), (49, 406110), (70, 284277), (98, 203055), (105, 189518), (147, 135370), (210, 94759), (245, 81222), (294, 67685), (490, 40611), (735, 27074), (1470, 13537)]