251136690987

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{540173}}^1$

素因数の和:540340

約数の個数: 48

約数和(自身を含む): 417550180608

約数和(自身を除く): 166413489621

約数列:

[1, 3, 7, 13, 21, 39, 91, 131, 169, 273, 393, 507, 917, 1183, 1703, 2751, 3549, 5109, 11921, 22139, 35763, 66417, 154973, 464919, 540173, 1620519, 3781211, 7022249, 11343633, 21066747, 49155743, 70762663, 91289237, 147467229, 212287989, 273867711, 495338641, 639024659, 919914619, 1486015923, 1917073977, 2759743857, 6439402333, 11958890047, 19318206999, 35876670141, 83712230329, 251136690987]

約数ペア:

[(1, 251136690987), (3, 83712230329), (7, 35876670141), (13, 19318206999), (21, 11958890047), (39, 6439402333), (91, 2759743857), (131, 1917073977), (169, 1486015923), (273, 919914619), (393, 639024659), (507, 495338641), (917, 273867711), (1183, 212287989), (1703, 147467229), (2751, 91289237), (3549, 70762663), (5109, 49155743), (11921, 21066747), (22139, 11343633), (35763, 7022249), (66417, 3781211), (154973, 1620519), (464919, 540173)]