19971756

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1933}}^1$

素因数の和:1991

約数の個数: 72

約数和(自身を含む): 59133984

約数和(自身を除く): 39162228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 1933, 2583, 3444, 3866, 5166, 5799, 7732, 10332, 11598, 13531, 17397, 23196, 27062, 34794, 40593, 54124, 69588, 79253, 81186, 121779, 158506, 162372, 237759, 243558, 317012, 475518, 487116, 554771, 713277, 951036, 1109542, 1426554, 1664313, 2219084, 2853108, 3328626, 4992939, 6657252, 9985878, 19971756]

約数ペア:

[(1, 19971756), (2, 9985878), (3, 6657252), (4, 4992939), (6, 3328626), (7, 2853108), (9, 2219084), (12, 1664313), (14, 1426554), (18, 1109542), (21, 951036), (28, 713277), (36, 554771), (41, 487116), (42, 475518), (63, 317012), (82, 243558), (84, 237759), (123, 162372), (126, 158506), (164, 121779), (246, 81186), (252, 79253), (287, 69588), (369, 54124), (492, 40593), (574, 34794), (738, 27062), (861, 23196), (1148, 17397), (1476, 13531), (1722, 11598), (1933, 10332), (2583, 7732), (3444, 5799), (3866, 5166)]