21006864

素因数分解:

$2^4\times 3^6\times {\mathrm{1801}}^1$

素因数の和:1827

約数の個数: 70

約数和(自身を含む): 61057166

約数和(自身を除く): 40050302

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 108, 144, 162, 216, 243, 324, 432, 486, 648, 729, 972, 1296, 1458, 1801, 1944, 2916, 3602, 3888, 5403, 5832, 7204, 10806, 11664, 14408, 16209, 21612, 28816, 32418, 43224, 48627, 64836, 86448, 97254, 129672, 145881, 194508, 259344, 291762, 389016, 437643, 583524, 778032, 875286, 1167048, 1312929, 1750572, 2334096, 2625858, 3501144, 5251716, 7002288, 10503432, 21006864]

約数ペア:

[(1, 21006864), (2, 10503432), (3, 7002288), (4, 5251716), (6, 3501144), (8, 2625858), (9, 2334096), (12, 1750572), (16, 1312929), (18, 1167048), (24, 875286), (27, 778032), (36, 583524), (48, 437643), (54, 389016), (72, 291762), (81, 259344), (108, 194508), (144, 145881), (162, 129672), (216, 97254), (243, 86448), (324, 64836), (432, 48627), (486, 43224), (648, 32418), (729, 28816), (972, 21612), (1296, 16209), (1458, 14408), (1801, 11664), (1944, 10806), (2916, 7204), (3602, 5832), (3888, 5403)]