81191201

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1693}}^1$

素因数の和:1761

約数の個数: 32

約数和(自身を含む): 109283328

約数和(自身を除く): 28092127

約数列:

[1, 7, 13, 17, 31, 91, 119, 217, 221, 403, 527, 1547, 1693, 2821, 3689, 6851, 11851, 22009, 28781, 47957, 52483, 154063, 201467, 367381, 374153, 682279, 892211, 2619071, 4775953, 6245477, 11598743, 81191201]

約数ペア:

[(1, 81191201), (7, 11598743), (13, 6245477), (17, 4775953), (31, 2619071), (91, 892211), (119, 682279), (217, 374153), (221, 367381), (403, 201467), (527, 154063), (1547, 52483), (1693, 47957), (2821, 28781), (3689, 22009), (6851, 11851)]