28565334

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:394

約数の個数: 72

約数和(自身を含む): 72825480

約数和(自身を除く): 44260146

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 139, 147, 233, 278, 294, 417, 441, 466, 699, 834, 882, 973, 1251, 1398, 1631, 1946, 2097, 2502, 2919, 3262, 4194, 4893, 5838, 6811, 8757, 9786, 11417, 13622, 14679, 17514, 20433, 22834, 29358, 32387, 34251, 40866, 61299, 64774, 68502, 97161, 102753, 122598, 194322, 205506, 226709, 291483, 453418, 582966, 680127, 1360254, 1586963, 2040381, 3173926, 4080762, 4760889, 9521778, 14282667, 28565334]

約数ペア:

[(1, 28565334), (2, 14282667), (3, 9521778), (6, 4760889), (7, 4080762), (9, 3173926), (14, 2040381), (18, 1586963), (21, 1360254), (42, 680127), (49, 582966), (63, 453418), (98, 291483), (126, 226709), (139, 205506), (147, 194322), (233, 122598), (278, 102753), (294, 97161), (417, 68502), (441, 64774), (466, 61299), (699, 40866), (834, 34251), (882, 32387), (973, 29358), (1251, 22834), (1398, 20433), (1631, 17514), (1946, 14679), (2097, 13622), (2502, 11417), (2919, 9786), (3262, 8757), (4194, 6811), (4893, 5838)]