21537488

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:412

約数の個数: 80

約数和(自身を含む): 52080000

約数和(自身を除く): 30542512

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 29, 38, 56, 58, 76, 112, 116, 133, 152, 203, 232, 266, 304, 349, 406, 464, 532, 551, 698, 812, 1064, 1102, 1396, 1624, 2128, 2204, 2443, 2792, 3248, 3857, 4408, 4886, 5584, 6631, 7714, 8816, 9772, 10121, 13262, 15428, 19544, 20242, 26524, 30856, 39088, 40484, 46417, 53048, 61712, 70847, 80968, 92834, 106096, 141694, 161936, 185668, 192299, 283388, 371336, 384598, 566776, 742672, 769196, 1133552, 1346093, 1538392, 2692186, 3076784, 5384372, 10768744, 21537488]

約数ペア:

[(1, 21537488), (2, 10768744), (4, 5384372), (7, 3076784), (8, 2692186), (14, 1538392), (16, 1346093), (19, 1133552), (28, 769196), (29, 742672), (38, 566776), (56, 384598), (58, 371336), (76, 283388), (112, 192299), (116, 185668), (133, 161936), (152, 141694), (203, 106096), (232, 92834), (266, 80968), (304, 70847), (349, 61712), (406, 53048), (464, 46417), (532, 40484), (551, 39088), (698, 30856), (812, 26524), (1064, 20242), (1102, 19544), (1396, 15428), (1624, 13262), (2128, 10121), (2204, 9772), (2443, 8816), (2792, 7714), (3248, 6631), (3857, 5584), (4408, 4886)]