18747806

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 37601280

約数和(自身を除く): 18853474

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 67, 77, 79, 134, 154, 158, 161, 253, 322, 469, 506, 553, 737, 869, 938, 1106, 1474, 1541, 1738, 1771, 1817, 3082, 3542, 3634, 5159, 5293, 6083, 10318, 10586, 10787, 12166, 12719, 16951, 19987, 21574, 25438, 33902, 37051, 39974, 58223, 74102, 116446, 118657, 121739, 139909, 237314, 243478, 279818, 407561, 815122, 852173, 1339129, 1704346, 2678258, 9373903, 18747806]

約数ペア:

[(1, 18747806), (2, 9373903), (7, 2678258), (11, 1704346), (14, 1339129), (22, 852173), (23, 815122), (46, 407561), (67, 279818), (77, 243478), (79, 237314), (134, 139909), (154, 121739), (158, 118657), (161, 116446), (253, 74102), (322, 58223), (469, 39974), (506, 37051), (553, 33902), (737, 25438), (869, 21574), (938, 19987), (1106, 16951), (1474, 12719), (1541, 12166), (1738, 10787), (1771, 10586), (1817, 10318), (3082, 6083), (3542, 5293), (3634, 5159)]