211581916

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{733}}^1$

素因数の和:831

約数の個数: 72

約数和(自身を含む): 466365984

約数和(自身を除く): 254784068

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 61, 91, 122, 169, 182, 244, 338, 364, 427, 676, 733, 793, 854, 1183, 1466, 1586, 1708, 2366, 2932, 3172, 4732, 5131, 5551, 9529, 10262, 10309, 11102, 19058, 20524, 20618, 22204, 38116, 41236, 44713, 66703, 72163, 89426, 123877, 133406, 144326, 178852, 247754, 266812, 288652, 312991, 495508, 581269, 625982, 867139, 1162538, 1251964, 1734278, 2325076, 3468556, 4068883, 7556497, 8137766, 15112994, 16275532, 30225988, 52895479, 105790958, 211581916]

約数ペア:

[(1, 211581916), (2, 105790958), (4, 52895479), (7, 30225988), (13, 16275532), (14, 15112994), (26, 8137766), (28, 7556497), (52, 4068883), (61, 3468556), (91, 2325076), (122, 1734278), (169, 1251964), (182, 1162538), (244, 867139), (338, 625982), (364, 581269), (427, 495508), (676, 312991), (733, 288652), (793, 266812), (854, 247754), (1183, 178852), (1466, 144326), (1586, 133406), (1708, 123877), (2366, 89426), (2932, 72163), (3172, 66703), (4732, 44713), (5131, 41236), (5551, 38116), (9529, 22204), (10262, 20618), (10309, 20524), (11102, 19058)]