21015198

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 47623680

約数和(自身を除く): 26608482

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 127, 174, 254, 261, 317, 381, 522, 634, 762, 951, 1143, 1902, 2286, 2853, 3683, 5706, 7366, 9193, 11049, 18386, 22098, 27579, 33147, 40259, 55158, 66294, 80518, 82737, 120777, 165474, 241554, 362331, 724662, 1167511, 2335022, 3502533, 7005066, 10507599, 21015198]

約数ペア:

[(1, 21015198), (2, 10507599), (3, 7005066), (6, 3502533), (9, 2335022), (18, 1167511), (29, 724662), (58, 362331), (87, 241554), (127, 165474), (174, 120777), (254, 82737), (261, 80518), (317, 66294), (381, 55158), (522, 40259), (634, 33147), (762, 27579), (951, 22098), (1143, 18386), (1902, 11049), (2286, 9193), (2853, 7366), (3683, 5706)]