21309008

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3119}}^1$

素因数の和:3195

約数の個数: 40

約数和(自身を含む): 47973120

約数和(自身を除く): 26664112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 3119, 3416, 6238, 6832, 12476, 21833, 24952, 43666, 49904, 87332, 174664, 190259, 349328, 380518, 761036, 1331813, 1522072, 2663626, 3044144, 5327252, 10654504, 21309008]

約数ペア:

[(1, 21309008), (2, 10654504), (4, 5327252), (7, 3044144), (8, 2663626), (14, 1522072), (16, 1331813), (28, 761036), (56, 380518), (61, 349328), (112, 190259), (122, 174664), (244, 87332), (427, 49904), (488, 43666), (854, 24952), (976, 21833), (1708, 12476), (3119, 6832), (3416, 6238)]