21081912208

素因数分解:

$2^4\times 7^1\times {\mathrm{229}}^1\times {\mathrm{821971}}^1$

素因数の和:822215

約数の個数: 40

約数和(自身を含む): 46885282880

約数和(自身を除く): 25803370672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 229, 458, 916, 1603, 1832, 3206, 3664, 6412, 12824, 25648, 821971, 1643942, 3287884, 5753797, 6575768, 11507594, 13151536, 23015188, 46030376, 92060752, 188231359, 376462718, 752925436, 1317619513, 1505850872, 2635239026, 3011701744, 5270478052, 10540956104, 21081912208]

約数ペア:

[(1, 21081912208), (2, 10540956104), (4, 5270478052), (7, 3011701744), (8, 2635239026), (14, 1505850872), (16, 1317619513), (28, 752925436), (56, 376462718), (112, 188231359), (229, 92060752), (458, 46030376), (916, 23015188), (1603, 13151536), (1832, 11507594), (3206, 6575768), (3664, 5753797), (6412, 3287884), (12824, 1643942), (25648, 821971)]