21351636

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:381

約数の個数: 72

約数和(自身を含む): 57081024

約数和(自身を除く): 35729388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 107, 138, 207, 214, 241, 276, 321, 414, 428, 482, 642, 723, 828, 963, 964, 1284, 1446, 1926, 2169, 2461, 2892, 3852, 4338, 4922, 5543, 7383, 8676, 9844, 11086, 14766, 16629, 22149, 22172, 25787, 29532, 33258, 44298, 49887, 51574, 66516, 77361, 88596, 99774, 103148, 154722, 199548, 232083, 309444, 464166, 593101, 928332, 1186202, 1779303, 2372404, 3558606, 5337909, 7117212, 10675818, 21351636]

約数ペア:

[(1, 21351636), (2, 10675818), (3, 7117212), (4, 5337909), (6, 3558606), (9, 2372404), (12, 1779303), (18, 1186202), (23, 928332), (36, 593101), (46, 464166), (69, 309444), (92, 232083), (107, 199548), (138, 154722), (207, 103148), (214, 99774), (241, 88596), (276, 77361), (321, 66516), (414, 51574), (428, 49887), (482, 44298), (642, 33258), (723, 29532), (828, 25787), (963, 22172), (964, 22149), (1284, 16629), (1446, 14766), (1926, 11086), (2169, 9844), (2461, 8676), (2892, 7383), (3852, 5543), (4338, 4922)]