20831392

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 43885800

約数和(自身を除く): 23054408

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 149, 257, 272, 298, 514, 544, 596, 1028, 1192, 2056, 2384, 2533, 4112, 4369, 4768, 5066, 8224, 8738, 10132, 17476, 20264, 34952, 38293, 40528, 69904, 76586, 81056, 139808, 153172, 306344, 612688, 650981, 1225376, 1301962, 2603924, 5207848, 10415696, 20831392]

約数ペア:

[(1, 20831392), (2, 10415696), (4, 5207848), (8, 2603924), (16, 1301962), (17, 1225376), (32, 650981), (34, 612688), (68, 306344), (136, 153172), (149, 139808), (257, 81056), (272, 76586), (298, 69904), (514, 40528), (544, 38293), (596, 34952), (1028, 20264), (1192, 17476), (2056, 10132), (2384, 8738), (2533, 8224), (4112, 5066), (4369, 4768)]