213905048

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 472369920

約数和(自身を除く): 258464872

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 211, 301, 344, 421, 422, 602, 842, 844, 1204, 1477, 1684, 1688, 2408, 2947, 2954, 3368, 5894, 5908, 9073, 11788, 11816, 18103, 18146, 23576, 36206, 36292, 63511, 72412, 72584, 88831, 126721, 127022, 144824, 177662, 253442, 254044, 355324, 506884, 508088, 621817, 710648, 1013768, 1243634, 2487268, 3819733, 4974536, 7639466, 15278932, 26738131, 30557864, 53476262, 106952524, 213905048]

約数ペア:

[(1, 213905048), (2, 106952524), (4, 53476262), (7, 30557864), (8, 26738131), (14, 15278932), (28, 7639466), (43, 4974536), (56, 3819733), (86, 2487268), (172, 1243634), (211, 1013768), (301, 710648), (344, 621817), (421, 508088), (422, 506884), (602, 355324), (842, 254044), (844, 253442), (1204, 177662), (1477, 144824), (1684, 127022), (1688, 126721), (2408, 88831), (2947, 72584), (2954, 72412), (3368, 63511), (5894, 36292), (5908, 36206), (9073, 23576), (11788, 18146), (11816, 18103)]