20837208

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4001}}^1$

素因数の和:4048

約数の個数: 64

約数和(自身を含む): 61470720

約数和(自身を除く): 40633512

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 56, 62, 84, 93, 124, 168, 186, 217, 248, 372, 434, 651, 744, 868, 1302, 1736, 2604, 4001, 5208, 8002, 12003, 16004, 24006, 28007, 32008, 48012, 56014, 84021, 96024, 112028, 124031, 168042, 224056, 248062, 336084, 372093, 496124, 672168, 744186, 868217, 992248, 1488372, 1736434, 2604651, 2976744, 3472868, 5209302, 6945736, 10418604, 20837208]

約数ペア:

[(1, 20837208), (2, 10418604), (3, 6945736), (4, 5209302), (6, 3472868), (7, 2976744), (8, 2604651), (12, 1736434), (14, 1488372), (21, 992248), (24, 868217), (28, 744186), (31, 672168), (42, 496124), (56, 372093), (62, 336084), (84, 248062), (93, 224056), (124, 168042), (168, 124031), (186, 112028), (217, 96024), (248, 84021), (372, 56014), (434, 48012), (651, 32008), (744, 28007), (868, 24006), (1302, 16004), (1736, 12003), (2604, 8002), (4001, 5208)]