21246498

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:161

約数の個数: 144

約数和(自身を含む): 61621560

約数和(自身を除く): 40375062

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 17, 18, 21, 26, 34, 39, 42, 49, 51, 63, 78, 91, 98, 102, 109, 117, 119, 126, 147, 153, 182, 218, 221, 234, 238, 273, 294, 306, 327, 357, 441, 442, 546, 637, 654, 663, 714, 763, 819, 833, 882, 981, 1071, 1274, 1326, 1417, 1526, 1547, 1638, 1666, 1853, 1911, 1962, 1989, 2142, 2289, 2499, 2834, 3094, 3706, 3822, 3978, 4251, 4578, 4641, 4998, 5341, 5559, 5733, 6867, 7497, 8502, 9282, 9919, 10682, 10829, 11118, 11466, 12753, 12971, 13734, 13923, 14994, 16023, 16677, 19838, 21658, 24089, 25506, 25942, 27846, 29757, 32046, 32487, 33354, 38913, 48069, 48178, 59514, 64974, 69433, 72267, 77826, 89271, 90797, 96138, 97461, 116739, 138866, 144534, 168623, 178542, 181594, 194922, 208299, 216801, 233478, 272391, 337246, 416598, 433602, 505869, 544782, 624897, 817173, 1011738, 1180361, 1249794, 1517607, 1634346, 2360722, 3035214, 3541083, 7082166, 10623249, 21246498]

約数ペア:

[(1, 21246498), (2, 10623249), (3, 7082166), (6, 3541083), (7, 3035214), (9, 2360722), (13, 1634346), (14, 1517607), (17, 1249794), (18, 1180361), (21, 1011738), (26, 817173), (34, 624897), (39, 544782), (42, 505869), (49, 433602), (51, 416598), (63, 337246), (78, 272391), (91, 233478), (98, 216801), (102, 208299), (109, 194922), (117, 181594), (119, 178542), (126, 168623), (147, 144534), (153, 138866), (182, 116739), (218, 97461), (221, 96138), (234, 90797), (238, 89271), (273, 77826), (294, 72267), (306, 69433), (327, 64974), (357, 59514), (441, 48178), (442, 48069), (546, 38913), (637, 33354), (654, 32487), (663, 32046), (714, 29757), (763, 27846), (819, 25942), (833, 25506), (882, 24089), (981, 21658), (1071, 19838), (1274, 16677), (1326, 16023), (1417, 14994), (1526, 13923), (1547, 13734), (1638, 12971), (1666, 12753), (1853, 11466), (1911, 11118), (1962, 10829), (1989, 10682), (2142, 9919), (2289, 9282), (2499, 8502), (2834, 7497), (3094, 6867), (3706, 5733), (3822, 5559), (3978, 5341), (4251, 4998), (4578, 4641)]