21000298496

素因数分解:

$2^{13}\times {\mathrm{29}}^1\times {\mathrm{88397}}^1$

素因数の和:88452

約数の個数: 56

約数和(自身を含む): 43446733020

約数和(自身を除く): 22446434524

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 464, 512, 928, 1024, 1856, 2048, 3712, 4096, 7424, 8192, 14848, 29696, 59392, 88397, 118784, 176794, 237568, 353588, 707176, 1414352, 2563513, 2828704, 5127026, 5657408, 10254052, 11314816, 20508104, 22629632, 41016208, 45259264, 82032416, 90518528, 164064832, 181037056, 328129664, 362074112, 656259328, 724148224, 1312518656, 2625037312, 5250074624, 10500149248, 21000298496]

約数ペア:

[(1, 21000298496), (2, 10500149248), (4, 5250074624), (8, 2625037312), (16, 1312518656), (29, 724148224), (32, 656259328), (58, 362074112), (64, 328129664), (116, 181037056), (128, 164064832), (232, 90518528), (256, 82032416), (464, 45259264), (512, 41016208), (928, 22629632), (1024, 20508104), (1856, 11314816), (2048, 10254052), (3712, 5657408), (4096, 5127026), (7424, 2828704), (8192, 2563513), (14848, 1414352), (29696, 707176), (59392, 353588), (88397, 237568), (118784, 176794)]