21392388

素因数分解:

$2^2\times 3^2\times {\mathrm{127}}^1\times {\mathrm{4679}}^1$

素因数の和:4816

約数の個数: 36

約数和(自身を含む): 54512640

約数和(自身を除く): 33120252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 127, 254, 381, 508, 762, 1143, 1524, 2286, 4572, 4679, 9358, 14037, 18716, 28074, 42111, 56148, 84222, 168444, 594233, 1188466, 1782699, 2376932, 3565398, 5348097, 7130796, 10696194, 21392388]

約数ペア:

[(1, 21392388), (2, 10696194), (3, 7130796), (4, 5348097), (6, 3565398), (9, 2376932), (12, 1782699), (18, 1188466), (36, 594233), (127, 168444), (254, 84222), (381, 56148), (508, 42111), (762, 28074), (1143, 18716), (1524, 14037), (2286, 9358), (4572, 4679)]