20689956

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:378

約数の個数: 108

約数和(自身を含む): 62679708

約数和(自身を除く): 41989752

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 49, 63, 74, 84, 98, 111, 126, 147, 148, 196, 222, 252, 259, 294, 317, 333, 441, 444, 518, 588, 634, 666, 777, 882, 951, 1036, 1268, 1332, 1554, 1764, 1813, 1902, 2219, 2331, 2853, 3108, 3626, 3804, 4438, 4662, 5439, 5706, 6657, 7252, 8876, 9324, 10878, 11412, 11729, 13314, 15533, 16317, 19971, 21756, 23458, 26628, 31066, 32634, 35187, 39942, 46599, 46916, 62132, 65268, 70374, 79884, 82103, 93198, 105561, 139797, 140748, 164206, 186396, 211122, 246309, 279594, 328412, 422244, 492618, 559188, 574721, 738927, 985236, 1149442, 1477854, 1724163, 2298884, 2955708, 3448326, 5172489, 6896652, 10344978, 20689956]

約数ペア:

[(1, 20689956), (2, 10344978), (3, 6896652), (4, 5172489), (6, 3448326), (7, 2955708), (9, 2298884), (12, 1724163), (14, 1477854), (18, 1149442), (21, 985236), (28, 738927), (36, 574721), (37, 559188), (42, 492618), (49, 422244), (63, 328412), (74, 279594), (84, 246309), (98, 211122), (111, 186396), (126, 164206), (147, 140748), (148, 139797), (196, 105561), (222, 93198), (252, 82103), (259, 79884), (294, 70374), (317, 65268), (333, 62132), (441, 46916), (444, 46599), (518, 39942), (588, 35187), (634, 32634), (666, 31066), (777, 26628), (882, 23458), (951, 21756), (1036, 19971), (1268, 16317), (1332, 15533), (1554, 13314), (1764, 11729), (1813, 11412), (1902, 10878), (2219, 9324), (2331, 8876), (2853, 7252), (3108, 6657), (3626, 5706), (3804, 5439), (4438, 4662)]