21395512

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 19730888

約数列:

[1, 2, 4, 8, 67, 134, 179, 223, 268, 358, 446, 536, 716, 892, 1432, 1784, 11993, 14941, 23986, 29882, 39917, 47972, 59764, 79834, 95944, 119528, 159668, 319336, 2674439, 5348878, 10697756, 21395512]

約数ペア:

[(1, 21395512), (2, 10697756), (4, 5348878), (8, 2674439), (67, 319336), (134, 159668), (179, 119528), (223, 95944), (268, 79834), (358, 59764), (446, 47972), (536, 39917), (716, 29882), (892, 23986), (1432, 14941), (1784, 11993)]