21581056

素因数分解:

$2^8\times 7^1\times {\mathrm{12043}}^1$

素因数の和:12066

約数の個数: 36

約数和(自身を含む): 49235872

約数和(自身を除く): 27654816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 12043, 24086, 48172, 84301, 96344, 168602, 192688, 337204, 385376, 674408, 770752, 1348816, 1541504, 2697632, 3083008, 5395264, 10790528, 21581056]

約数ペア:

[(1, 21581056), (2, 10790528), (4, 5395264), (7, 3083008), (8, 2697632), (14, 1541504), (16, 1348816), (28, 770752), (32, 674408), (56, 385376), (64, 337204), (112, 192688), (128, 168602), (224, 96344), (256, 84301), (448, 48172), (896, 24086), (1792, 12043)]