21597400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9817}}^1$

素因数の和:9844

約数の個数: 48

約数和(自身を含む): 54784440

約数和(自身を除く): 33187040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9817, 19634, 39268, 49085, 78536, 98170, 107987, 196340, 215974, 245425, 392680, 431948, 490850, 539935, 863896, 981700, 1079870, 1963400, 2159740, 2699675, 4319480, 5399350, 10798700, 21597400]

約数ペア:

[(1, 21597400), (2, 10798700), (4, 5399350), (5, 4319480), (8, 2699675), (10, 2159740), (11, 1963400), (20, 1079870), (22, 981700), (25, 863896), (40, 539935), (44, 490850), (50, 431948), (55, 392680), (88, 245425), (100, 215974), (110, 196340), (200, 107987), (220, 98170), (275, 78536), (440, 49085), (550, 39268), (1100, 19634), (2200, 9817)]