21591332

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 44943360

約数和(自身を除く): 23352028

約数列:

[1, 2, 4, 7, 14, 28, 43, 79, 86, 158, 172, 227, 301, 316, 454, 553, 602, 908, 1106, 1204, 1589, 2212, 3178, 3397, 6356, 6794, 9761, 13588, 17933, 19522, 23779, 35866, 39044, 47558, 68327, 71732, 95116, 125531, 136654, 251062, 273308, 502124, 771119, 1542238, 3084476, 5397833, 10795666, 21591332]

約数ペア:

[(1, 21591332), (2, 10795666), (4, 5397833), (7, 3084476), (14, 1542238), (28, 771119), (43, 502124), (79, 273308), (86, 251062), (158, 136654), (172, 125531), (227, 95116), (301, 71732), (316, 68327), (454, 47558), (553, 39044), (602, 35866), (908, 23779), (1106, 19522), (1204, 17933), (1589, 13588), (2212, 9761), (3178, 6794), (3397, 6356)]