19966024

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 44634240

約数和(自身を除く): 24668216

約数列:

[1, 2, 4, 8, 13, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 184, 221, 299, 391, 442, 491, 598, 782, 884, 982, 1196, 1564, 1768, 1964, 2392, 3128, 3928, 5083, 6383, 8347, 10166, 11293, 12766, 16694, 20332, 22586, 25532, 33388, 40664, 45172, 51064, 66776, 90344, 108511, 146809, 191981, 217022, 293618, 383962, 434044, 587236, 767924, 868088, 1174472, 1535848, 2495753, 4991506, 9983012, 19966024]

約数ペア:

[(1, 19966024), (2, 9983012), (4, 4991506), (8, 2495753), (13, 1535848), (17, 1174472), (23, 868088), (26, 767924), (34, 587236), (46, 434044), (52, 383962), (68, 293618), (92, 217022), (104, 191981), (136, 146809), (184, 108511), (221, 90344), (299, 66776), (391, 51064), (442, 45172), (491, 40664), (598, 33388), (782, 25532), (884, 22586), (982, 20332), (1196, 16694), (1564, 12766), (1768, 11293), (1964, 10166), (2392, 8347), (3128, 6383), (3928, 5083)]