21850506

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 51575040

約数和(自身を除く): 29724534

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 73, 138, 146, 207, 219, 241, 414, 438, 482, 621, 657, 723, 1242, 1314, 1446, 1679, 1971, 2169, 3358, 3942, 4338, 5037, 5543, 6507, 10074, 11086, 13014, 15111, 16629, 17593, 30222, 33258, 35186, 45333, 49887, 52779, 90666, 99774, 105558, 149661, 158337, 299322, 316674, 404639, 475011, 809278, 950022, 1213917, 2427834, 3641751, 7283502, 10925253, 21850506]

約数ペア:

[(1, 21850506), (2, 10925253), (3, 7283502), (6, 3641751), (9, 2427834), (18, 1213917), (23, 950022), (27, 809278), (46, 475011), (54, 404639), (69, 316674), (73, 299322), (138, 158337), (146, 149661), (207, 105558), (219, 99774), (241, 90666), (414, 52779), (438, 49887), (482, 45333), (621, 35186), (657, 33258), (723, 30222), (1242, 17593), (1314, 16629), (1446, 15111), (1679, 13014), (1971, 11086), (2169, 10074), (3358, 6507), (3942, 5543), (4338, 5037)]