19940649534

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1396991}}^1$

素因数の和:1397073

約数の個数: 48

約数和(自身を含む): 47290973184

約数和(自身を除く): 27350323650

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 61, 78, 117, 122, 183, 234, 366, 549, 793, 1098, 1586, 2379, 4758, 7137, 14274, 1396991, 2793982, 4190973, 8381946, 12572919, 18160883, 25145838, 36321766, 54482649, 85216451, 108965298, 163447947, 170432902, 255649353, 326895894, 511298706, 766948059, 1107813863, 1533896118, 2215627726, 3323441589, 6646883178, 9970324767, 19940649534]

約数ペア:

[(1, 19940649534), (2, 9970324767), (3, 6646883178), (6, 3323441589), (9, 2215627726), (13, 1533896118), (18, 1107813863), (26, 766948059), (39, 511298706), (61, 326895894), (78, 255649353), (117, 170432902), (122, 163447947), (183, 108965298), (234, 85216451), (366, 54482649), (549, 36321766), (793, 25145838), (1098, 18160883), (1586, 12572919), (2379, 8381946), (4758, 4190973), (7137, 2793982), (14274, 1396991)]