21087234

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 72

約数和(自身を含む): 54350400

約数和(自身を除く): 33263166

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 174, 199, 203, 261, 398, 406, 522, 597, 609, 841, 1194, 1218, 1393, 1682, 1791, 1827, 2523, 2786, 3582, 3654, 4179, 5046, 5771, 5887, 7569, 8358, 11542, 11774, 12537, 15138, 17313, 17661, 25074, 34626, 35322, 40397, 51939, 52983, 80794, 103878, 105966, 121191, 167359, 242382, 334718, 363573, 502077, 727146, 1004154, 1171513, 1506231, 2343026, 3012462, 3514539, 7029078, 10543617, 21087234]

約数ペア:

[(1, 21087234), (2, 10543617), (3, 7029078), (6, 3514539), (7, 3012462), (9, 2343026), (14, 1506231), (18, 1171513), (21, 1004154), (29, 727146), (42, 502077), (58, 363573), (63, 334718), (87, 242382), (126, 167359), (174, 121191), (199, 105966), (203, 103878), (261, 80794), (398, 52983), (406, 51939), (522, 40397), (597, 35322), (609, 34626), (841, 25074), (1194, 17661), (1218, 17313), (1393, 15138), (1682, 12537), (1791, 11774), (1827, 11542), (2523, 8358), (2786, 7569), (3582, 5887), (3654, 5771), (4179, 5046)]