840804909

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 1381220352

約数和(自身を除く): 540415443

約数列:

[1, 3, 7, 21, 31, 37, 67, 93, 111, 201, 217, 259, 469, 521, 651, 777, 1147, 1407, 1563, 2077, 2479, 3441, 3647, 6231, 7437, 8029, 10941, 14539, 16151, 17353, 19277, 24087, 34907, 43617, 48453, 52059, 57831, 76849, 104721, 113057, 134939, 230547, 244349, 339171, 404817, 537943, 597587, 733047, 1082117, 1291559, 1613829, 1792761, 3246351, 3874677, 4183109, 7574819, 9040913, 12549327, 22724457, 27122739, 40038329, 120114987, 280268303, 840804909]

約数ペア:

[(1, 840804909), (3, 280268303), (7, 120114987), (21, 40038329), (31, 27122739), (37, 22724457), (67, 12549327), (93, 9040913), (111, 7574819), (201, 4183109), (217, 3874677), (259, 3246351), (469, 1792761), (521, 1613829), (651, 1291559), (777, 1082117), (1147, 733047), (1407, 597587), (1563, 537943), (2077, 404817), (2479, 339171), (3441, 244349), (3647, 230547), (6231, 134939), (7437, 113057), (8029, 104721), (10941, 76849), (14539, 57831), (16151, 52059), (17353, 48453), (19277, 43617), (24087, 34907)]