217571874

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:455

約数の個数: 64

約数和(自身を含む): 479001600

約数和(自身を除く): 261429726

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 107, 131, 199, 214, 262, 321, 393, 398, 597, 642, 786, 1194, 1391, 1703, 2587, 2782, 3406, 4173, 5109, 5174, 7761, 8346, 10218, 14017, 15522, 21293, 26069, 28034, 42051, 42586, 52138, 63879, 78207, 84102, 127758, 156414, 182221, 276809, 338897, 364442, 546663, 553618, 677794, 830427, 1016691, 1093326, 1660854, 2033382, 2789383, 5578766, 8368149, 16736298, 36261979, 72523958, 108785937, 217571874]

約数ペア:

[(1, 217571874), (2, 108785937), (3, 72523958), (6, 36261979), (13, 16736298), (26, 8368149), (39, 5578766), (78, 2789383), (107, 2033382), (131, 1660854), (199, 1093326), (214, 1016691), (262, 830427), (321, 677794), (393, 553618), (398, 546663), (597, 364442), (642, 338897), (786, 276809), (1194, 182221), (1391, 156414), (1703, 127758), (2587, 84102), (2782, 78207), (3406, 63879), (4173, 52138), (5109, 42586), (5174, 42051), (7761, 28034), (8346, 26069), (10218, 21293), (14017, 15522)]