19815928

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{1861}}^1$

素因数の和:1900

約数の個数: 32

約数和(自身を含む): 40889520

約数和(自身を除く): 21073592

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 1331, 1861, 2662, 3722, 5324, 7444, 10648, 14888, 20471, 40942, 81884, 163768, 225181, 450362, 900724, 1801448, 2476991, 4953982, 9907964, 19815928]

約数ペア:

[(1, 19815928), (2, 9907964), (4, 4953982), (8, 2476991), (11, 1801448), (22, 900724), (44, 450362), (88, 225181), (121, 163768), (242, 81884), (484, 40942), (968, 20471), (1331, 14888), (1861, 10648), (2662, 7444), (3722, 5324)]