21166750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 23311970

約数列:

[1, 2, 5, 10, 11, 22, 25, 43, 50, 55, 86, 110, 125, 179, 215, 250, 275, 358, 430, 473, 550, 895, 946, 1075, 1375, 1790, 1969, 2150, 2365, 2750, 3938, 4475, 4730, 5375, 7697, 8950, 9845, 10750, 11825, 15394, 19690, 22375, 23650, 38485, 44750, 49225, 59125, 76970, 84667, 98450, 118250, 169334, 192425, 246125, 384850, 423335, 492250, 846670, 962125, 1924250, 2116675, 4233350, 10583375, 21166750]

約数ペア:

[(1, 21166750), (2, 10583375), (5, 4233350), (10, 2116675), (11, 1924250), (22, 962125), (25, 846670), (43, 492250), (50, 423335), (55, 384850), (86, 246125), (110, 192425), (125, 169334), (179, 118250), (215, 98450), (250, 84667), (275, 76970), (358, 59125), (430, 49225), (473, 44750), (550, 38485), (895, 23650), (946, 22375), (1075, 19690), (1375, 15394), (1790, 11825), (1969, 10750), (2150, 9845), (2365, 8950), (2750, 7697), (3938, 5375), (4475, 4730)]