18102231

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^2$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 32723200

約数和(自身を除く): 14620969

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 71, 133, 171, 189, 213, 399, 497, 513, 639, 1197, 1349, 1491, 1917, 3591, 4047, 4473, 5041, 9443, 12141, 13419, 15123, 28329, 35287, 36423, 45369, 84987, 95779, 105861, 136107, 254961, 287337, 317583, 670453, 862011, 952749, 2011359, 2586033, 6034077, 18102231]

約数ペア:

[(1, 18102231), (3, 6034077), (7, 2586033), (9, 2011359), (19, 952749), (21, 862011), (27, 670453), (57, 317583), (63, 287337), (71, 254961), (133, 136107), (171, 105861), (189, 95779), (213, 84987), (399, 45369), (497, 36423), (513, 35287), (639, 28329), (1197, 15123), (1349, 13419), (1491, 12141), (1917, 9443), (3591, 5041), (4047, 4473)]