20251777

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 28460160

約数和(自身を除く): 8208383

約数列:

[1, 7, 13, 17, 19, 53, 91, 119, 133, 169, 221, 247, 323, 371, 689, 901, 1007, 1183, 1547, 1729, 2261, 2873, 3211, 4199, 4823, 6307, 7049, 8957, 11713, 13091, 17119, 20111, 22477, 29393, 54587, 62699, 81991, 91637, 119833, 152269, 170183, 222547, 382109, 1065883, 1191281, 1557829, 2893111, 20251777]

約数ペア:

[(1, 20251777), (7, 2893111), (13, 1557829), (17, 1191281), (19, 1065883), (53, 382109), (91, 222547), (119, 170183), (133, 152269), (169, 119833), (221, 91637), (247, 81991), (323, 62699), (371, 54587), (689, 29393), (901, 22477), (1007, 20111), (1183, 17119), (1547, 13091), (1729, 11713), (2261, 8957), (2873, 7049), (3211, 6307), (4199, 4823)]