261950787

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{797}}^1$

素因数の和:897

約数の個数: 64

約数和(自身を含む): 465776640

約数和(自身を除く): 203825853

約数列:

[1, 3, 7, 9, 21, 27, 37, 47, 63, 111, 141, 189, 259, 329, 333, 423, 777, 797, 987, 999, 1269, 1739, 2331, 2391, 2961, 5217, 5579, 6993, 7173, 8883, 12173, 15651, 16737, 21519, 29489, 36519, 37459, 46953, 50211, 88467, 109557, 112377, 150633, 206423, 262213, 265401, 328671, 337131, 619269, 786639, 796203, 1011393, 1385983, 1857807, 2359917, 4157949, 5573421, 7079751, 9701881, 12473847, 29105643, 37421541, 87316929, 261950787]

約数ペア:

[(1, 261950787), (3, 87316929), (7, 37421541), (9, 29105643), (21, 12473847), (27, 9701881), (37, 7079751), (47, 5573421), (63, 4157949), (111, 2359917), (141, 1857807), (189, 1385983), (259, 1011393), (329, 796203), (333, 786639), (423, 619269), (777, 337131), (797, 328671), (987, 265401), (999, 262213), (1269, 206423), (1739, 150633), (2331, 112377), (2391, 109557), (2961, 88467), (5217, 50211), (5579, 46953), (6993, 37459), (7173, 36519), (8883, 29489), (12173, 21519), (15651, 16737)]