20729358

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:240

約数の個数: 96

約数和(自身を含む): 53385696

約数和(自身を除く): 32656338

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 51, 54, 78, 81, 102, 117, 153, 162, 193, 221, 234, 243, 306, 351, 386, 442, 459, 486, 579, 663, 702, 918, 1053, 1158, 1326, 1377, 1737, 1989, 2106, 2509, 2754, 3159, 3281, 3474, 3978, 4131, 5018, 5211, 5967, 6318, 6562, 7527, 8262, 9843, 10422, 11934, 15054, 15633, 17901, 19686, 22581, 29529, 31266, 35802, 42653, 45162, 46899, 53703, 59058, 67743, 85306, 88587, 93798, 107406, 127959, 135486, 177174, 203229, 255918, 265761, 383877, 406458, 531522, 609687, 767754, 797283, 1151631, 1219374, 1594566, 2303262, 3454893, 6909786, 10364679, 20729358]

約数ペア:

[(1, 20729358), (2, 10364679), (3, 6909786), (6, 3454893), (9, 2303262), (13, 1594566), (17, 1219374), (18, 1151631), (26, 797283), (27, 767754), (34, 609687), (39, 531522), (51, 406458), (54, 383877), (78, 265761), (81, 255918), (102, 203229), (117, 177174), (153, 135486), (162, 127959), (193, 107406), (221, 93798), (234, 88587), (243, 85306), (306, 67743), (351, 59058), (386, 53703), (442, 46899), (459, 45162), (486, 42653), (579, 35802), (663, 31266), (702, 29529), (918, 22581), (1053, 19686), (1158, 17901), (1326, 15633), (1377, 15054), (1737, 11934), (1989, 10422), (2106, 9843), (2509, 8262), (2754, 7527), (3159, 6562), (3281, 6318), (3474, 5967), (3978, 5211), (4131, 5018)]