20169786

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 128

約数和(自身を含む): 54867456

約数和(自身を除く): 34697670

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 26, 34, 39, 41, 42, 51, 53, 78, 82, 91, 102, 106, 119, 123, 159, 182, 221, 238, 246, 273, 287, 318, 357, 371, 442, 533, 546, 574, 663, 689, 697, 714, 742, 861, 901, 1066, 1113, 1326, 1378, 1394, 1547, 1599, 1722, 1802, 2067, 2091, 2173, 2226, 2703, 3094, 3198, 3731, 4134, 4182, 4346, 4641, 4823, 4879, 5406, 6307, 6519, 7462, 9061, 9282, 9646, 9758, 11193, 11713, 12614, 13038, 14469, 14637, 15211, 18122, 18921, 22386, 23426, 27183, 28249, 28938, 29274, 30422, 35139, 36941, 37842, 45633, 54366, 56498, 63427, 70278, 73882, 81991, 84747, 91266, 110823, 126854, 163982, 169494, 190281, 197743, 221646, 245973, 258587, 380562, 395486, 480233, 491946, 517174, 593229, 775761, 960466, 1186458, 1440699, 1551522, 2881398, 3361631, 6723262, 10084893, 20169786]

約数ペア:

[(1, 20169786), (2, 10084893), (3, 6723262), (6, 3361631), (7, 2881398), (13, 1551522), (14, 1440699), (17, 1186458), (21, 960466), (26, 775761), (34, 593229), (39, 517174), (41, 491946), (42, 480233), (51, 395486), (53, 380562), (78, 258587), (82, 245973), (91, 221646), (102, 197743), (106, 190281), (119, 169494), (123, 163982), (159, 126854), (182, 110823), (221, 91266), (238, 84747), (246, 81991), (273, 73882), (287, 70278), (318, 63427), (357, 56498), (371, 54366), (442, 45633), (533, 37842), (546, 36941), (574, 35139), (663, 30422), (689, 29274), (697, 28938), (714, 28249), (742, 27183), (861, 23426), (901, 22386), (1066, 18921), (1113, 18122), (1326, 15211), (1378, 14637), (1394, 14469), (1547, 13038), (1599, 12614), (1722, 11713), (1802, 11193), (2067, 9758), (2091, 9646), (2173, 9282), (2226, 9061), (2703, 7462), (3094, 6519), (3198, 6307), (3731, 5406), (4134, 4879), (4182, 4823), (4346, 4641)]