19280118

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{977}}^1$

素因数の和:1029

約数の個数: 64

約数和(自身を含む): 47319552

約数和(自身を除く): 28039434

約数列:

[1, 2, 3, 6, 11, 13, 22, 23, 26, 33, 39, 46, 66, 69, 78, 138, 143, 253, 286, 299, 429, 506, 598, 759, 858, 897, 977, 1518, 1794, 1954, 2931, 3289, 5862, 6578, 9867, 10747, 12701, 19734, 21494, 22471, 25402, 32241, 38103, 44942, 64482, 67413, 76206, 134826, 139711, 247181, 279422, 292123, 419133, 494362, 584246, 741543, 838266, 876369, 1483086, 1752738, 3213353, 6426706, 9640059, 19280118]

約数ペア:

[(1, 19280118), (2, 9640059), (3, 6426706), (6, 3213353), (11, 1752738), (13, 1483086), (22, 876369), (23, 838266), (26, 741543), (33, 584246), (39, 494362), (46, 419133), (66, 292123), (69, 279422), (78, 247181), (138, 139711), (143, 134826), (253, 76206), (286, 67413), (299, 64482), (429, 44942), (506, 38103), (598, 32241), (759, 25402), (858, 22471), (897, 21494), (977, 19734), (1518, 12701), (1794, 10747), (1954, 9867), (2931, 6578), (3289, 5862)]