21873964

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{11003}}^1$

素因数の和:11085

約数の個数: 24

約数和(自身を含む): 44368128

約数和(自身を除く): 22494164

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 11003, 22006, 44012, 77021, 154042, 308084, 781213, 1562426, 3124852, 5468491, 10936982, 21873964]

約数ペア:

[(1, 21873964), (2, 10936982), (4, 5468491), (7, 3124852), (14, 1562426), (28, 781213), (71, 308084), (142, 154042), (284, 77021), (497, 44012), (994, 22006), (1988, 11003)]