21606354

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1$

素因数の和:181

約数の個数: 144

約数和(自身を含む): 63382176

約数和(自身を除く): 41775822

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 17, 18, 21, 22, 33, 34, 42, 49, 51, 63, 66, 77, 98, 99, 102, 119, 126, 131, 147, 153, 154, 187, 198, 231, 238, 262, 294, 306, 357, 374, 393, 441, 462, 539, 561, 693, 714, 786, 833, 882, 917, 1071, 1078, 1122, 1179, 1309, 1386, 1441, 1617, 1666, 1683, 1834, 2142, 2227, 2358, 2499, 2618, 2751, 2882, 3234, 3366, 3927, 4323, 4454, 4851, 4998, 5502, 6419, 6681, 7497, 7854, 8253, 8646, 9163, 9702, 10087, 11781, 12838, 12969, 13362, 14994, 15589, 16506, 18326, 19257, 20043, 20174, 23562, 24497, 25938, 27489, 30261, 31178, 38514, 40086, 46767, 48994, 54978, 57771, 60522, 70609, 73491, 82467, 90783, 93534, 109123, 115542, 140301, 141218, 146982, 164934, 171479, 181566, 211827, 218246, 220473, 280602, 327369, 342958, 423654, 440946, 514437, 635481, 654738, 982107, 1028874, 1200353, 1270962, 1543311, 1964214, 2400706, 3086622, 3601059, 7202118, 10803177, 21606354]

約数ペア:

[(1, 21606354), (2, 10803177), (3, 7202118), (6, 3601059), (7, 3086622), (9, 2400706), (11, 1964214), (14, 1543311), (17, 1270962), (18, 1200353), (21, 1028874), (22, 982107), (33, 654738), (34, 635481), (42, 514437), (49, 440946), (51, 423654), (63, 342958), (66, 327369), (77, 280602), (98, 220473), (99, 218246), (102, 211827), (119, 181566), (126, 171479), (131, 164934), (147, 146982), (153, 141218), (154, 140301), (187, 115542), (198, 109123), (231, 93534), (238, 90783), (262, 82467), (294, 73491), (306, 70609), (357, 60522), (374, 57771), (393, 54978), (441, 48994), (462, 46767), (539, 40086), (561, 38514), (693, 31178), (714, 30261), (786, 27489), (833, 25938), (882, 24497), (917, 23562), (1071, 20174), (1078, 20043), (1122, 19257), (1179, 18326), (1309, 16506), (1386, 15589), (1441, 14994), (1617, 13362), (1666, 12969), (1683, 12838), (1834, 11781), (2142, 10087), (2227, 9702), (2358, 9163), (2499, 8646), (2618, 8253), (2751, 7854), (2882, 7497), (3234, 6681), (3366, 6419), (3927, 5502), (4323, 4998), (4454, 4851)]