21649744

素因数分解:

$2^4\times {\mathrm{739}}^1\times {\mathrm{1831}}^1$

素因数の和:2578

約数の個数: 20

約数和(自身を含む): 42026080

約数和(自身を除く): 20376336

約数列:

[1, 2, 4, 8, 16, 739, 1478, 1831, 2956, 3662, 5912, 7324, 11824, 14648, 29296, 1353109, 2706218, 5412436, 10824872, 21649744]

約数ペア:

[(1, 21649744), (2, 10824872), (4, 5412436), (8, 2706218), (16, 1353109), (739, 29296), (1478, 14648), (1831, 11824), (2956, 7324), (3662, 5912)]