18972016

素因数分解:

$2^4\times 7^3\times {\mathrm{3457}}^1$

素因数の和:3486

約数の個数: 40

約数和(自身を含む): 42879200

約数和(自身を除く): 23907184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3457, 5488, 6914, 13828, 24199, 27656, 48398, 55312, 96796, 169393, 193592, 338786, 387184, 677572, 1185751, 1355144, 2371502, 2710288, 4743004, 9486008, 18972016]

約数ペア:

[(1, 18972016), (2, 9486008), (4, 4743004), (7, 2710288), (8, 2371502), (14, 1355144), (16, 1185751), (28, 677572), (49, 387184), (56, 338786), (98, 193592), (112, 169393), (196, 96796), (343, 55312), (392, 48398), (686, 27656), (784, 24199), (1372, 13828), (2744, 6914), (3457, 5488)]