18993814

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{967}}^1$

素因数の和:1060

約数の個数: 32

約数和(自身を含む): 34569216

約数和(自身を除く): 15575402

約数列:

[1, 2, 7, 14, 23, 46, 61, 122, 161, 322, 427, 854, 967, 1403, 1934, 2806, 6769, 9821, 13538, 19642, 22241, 44482, 58987, 117974, 155687, 311374, 412909, 825818, 1356701, 2713402, 9496907, 18993814]

約数ペア:

[(1, 18993814), (2, 9496907), (7, 2713402), (14, 1356701), (23, 825818), (46, 412909), (61, 311374), (122, 155687), (161, 117974), (322, 58987), (427, 44482), (854, 22241), (967, 19642), (1403, 13538), (1934, 9821), (2806, 6769)]