21608016

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 120

約数和(自身を含む): 62362080

約数和(自身を除く): 40754064

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 29, 38, 43, 48, 57, 58, 76, 86, 87, 114, 116, 129, 152, 172, 174, 228, 232, 258, 304, 344, 348, 361, 456, 464, 516, 551, 688, 696, 722, 817, 912, 1032, 1083, 1102, 1247, 1392, 1444, 1634, 1653, 2064, 2166, 2204, 2451, 2494, 2888, 3268, 3306, 3741, 4332, 4408, 4902, 4988, 5776, 6536, 6612, 7482, 8664, 8816, 9804, 9976, 10469, 13072, 13224, 14964, 15523, 17328, 19608, 19952, 20938, 23693, 26448, 29928, 31046, 31407, 39216, 41876, 46569, 47386, 59856, 62092, 62814, 71079, 83752, 93138, 94772, 124184, 125628, 142158, 167504, 186276, 189544, 248368, 251256, 284316, 372552, 379088, 450167, 502512, 568632, 745104, 900334, 1137264, 1350501, 1800668, 2701002, 3601336, 5402004, 7202672, 10804008, 21608016]

約数ペア:

[(1, 21608016), (2, 10804008), (3, 7202672), (4, 5402004), (6, 3601336), (8, 2701002), (12, 1800668), (16, 1350501), (19, 1137264), (24, 900334), (29, 745104), (38, 568632), (43, 502512), (48, 450167), (57, 379088), (58, 372552), (76, 284316), (86, 251256), (87, 248368), (114, 189544), (116, 186276), (129, 167504), (152, 142158), (172, 125628), (174, 124184), (228, 94772), (232, 93138), (258, 83752), (304, 71079), (344, 62814), (348, 62092), (361, 59856), (456, 47386), (464, 46569), (516, 41876), (551, 39216), (688, 31407), (696, 31046), (722, 29928), (817, 26448), (912, 23693), (1032, 20938), (1083, 19952), (1102, 19608), (1247, 17328), (1392, 15523), (1444, 14964), (1634, 13224), (1653, 13072), (2064, 10469), (2166, 9976), (2204, 9804), (2451, 8816), (2494, 8664), (2888, 7482), (3268, 6612), (3306, 6536), (3741, 5776), (4332, 4988), (4408, 4902)]