20503938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^2$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 54601344

約数和(自身を除く): 34097406

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 26, 34, 39, 42, 47, 51, 78, 91, 94, 102, 119, 141, 182, 221, 238, 273, 282, 329, 357, 442, 546, 611, 658, 663, 714, 799, 987, 1222, 1326, 1547, 1598, 1833, 1974, 2209, 2397, 3094, 3666, 4277, 4418, 4641, 4794, 5593, 6627, 8554, 9282, 10387, 11186, 12831, 13254, 15463, 16779, 20774, 25662, 28717, 30926, 31161, 33558, 37553, 46389, 57434, 62322, 72709, 75106, 86151, 92778, 112659, 145418, 172302, 201019, 218127, 225318, 262871, 402038, 436254, 488189, 525742, 603057, 788613, 976378, 1206114, 1464567, 1577226, 2929134, 3417323, 6834646, 10251969, 20503938]

約数ペア:

[(1, 20503938), (2, 10251969), (3, 6834646), (6, 3417323), (7, 2929134), (13, 1577226), (14, 1464567), (17, 1206114), (21, 976378), (26, 788613), (34, 603057), (39, 525742), (42, 488189), (47, 436254), (51, 402038), (78, 262871), (91, 225318), (94, 218127), (102, 201019), (119, 172302), (141, 145418), (182, 112659), (221, 92778), (238, 86151), (273, 75106), (282, 72709), (329, 62322), (357, 57434), (442, 46389), (546, 37553), (611, 33558), (658, 31161), (663, 30926), (714, 28717), (799, 25662), (987, 20774), (1222, 16779), (1326, 15463), (1547, 13254), (1598, 12831), (1833, 11186), (1974, 10387), (2209, 9282), (2397, 8554), (3094, 6627), (3666, 5593), (4277, 4794), (4418, 4641)]