21340928

素因数分解:

$2^8\times 7^1\times {\mathrm{11909}}^1$

素因数の和:11932

約数の個数: 36

約数和(自身を含む): 48688080

約数和(自身を除く): 27347152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11909, 23818, 47636, 83363, 95272, 166726, 190544, 333452, 381088, 666904, 762176, 1333808, 1524352, 2667616, 3048704, 5335232, 10670464, 21340928]

約数ペア:

[(1, 21340928), (2, 10670464), (4, 5335232), (7, 3048704), (8, 2667616), (14, 1524352), (16, 1333808), (28, 762176), (32, 666904), (56, 381088), (64, 333452), (112, 190544), (128, 166726), (224, 95272), (256, 83363), (448, 47636), (896, 23818), (1792, 11909)]