21180936

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:144

約数の個数: 128

約数和(自身を含む): 64512000

約数和(自身を除く): 43331064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 49, 56, 62, 83, 84, 93, 98, 124, 147, 166, 168, 186, 196, 217, 248, 249, 294, 332, 343, 372, 392, 434, 498, 581, 588, 651, 664, 686, 744, 868, 996, 1029, 1162, 1176, 1302, 1372, 1519, 1736, 1743, 1992, 2058, 2324, 2573, 2604, 2744, 3038, 3486, 4067, 4116, 4557, 4648, 5146, 5208, 6076, 6972, 7719, 8134, 8232, 9114, 10292, 10633, 12152, 12201, 13944, 15438, 16268, 18011, 18228, 20584, 21266, 24402, 28469, 30876, 31899, 32536, 36022, 36456, 42532, 48804, 54033, 56938, 61752, 63798, 72044, 85064, 85407, 97608, 108066, 113876, 126077, 127596, 144088, 170814, 216132, 227752, 252154, 255192, 341628, 378231, 432264, 504308, 683256, 756462, 882539, 1008616, 1512924, 1765078, 2647617, 3025848, 3530156, 5295234, 7060312, 10590468, 21180936]

約数ペア:

[(1, 21180936), (2, 10590468), (3, 7060312), (4, 5295234), (6, 3530156), (7, 3025848), (8, 2647617), (12, 1765078), (14, 1512924), (21, 1008616), (24, 882539), (28, 756462), (31, 683256), (42, 504308), (49, 432264), (56, 378231), (62, 341628), (83, 255192), (84, 252154), (93, 227752), (98, 216132), (124, 170814), (147, 144088), (166, 127596), (168, 126077), (186, 113876), (196, 108066), (217, 97608), (248, 85407), (249, 85064), (294, 72044), (332, 63798), (343, 61752), (372, 56938), (392, 54033), (434, 48804), (498, 42532), (581, 36456), (588, 36022), (651, 32536), (664, 31899), (686, 30876), (744, 28469), (868, 24402), (996, 21266), (1029, 20584), (1162, 18228), (1176, 18011), (1302, 16268), (1372, 15438), (1519, 13944), (1736, 12201), (1743, 12152), (1992, 10633), (2058, 10292), (2324, 9114), (2573, 8232), (2604, 8134), (2744, 7719), (3038, 6972), (3486, 6076), (4067, 5208), (4116, 5146), (4557, 4648)]