87871371

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 144255744

約数和(自身を除く): 56384373

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 173, 201, 361, 399, 469, 519, 1083, 1211, 1273, 1407, 2527, 3287, 3633, 3819, 7581, 8911, 9861, 11591, 23009, 24187, 26733, 34773, 62453, 69027, 72561, 81137, 169309, 187359, 220229, 243411, 437171, 507927, 660687, 1311513, 1541603, 4184351, 4624809, 12553053, 29290457, 87871371]

約数ペア:

[(1, 87871371), (3, 29290457), (7, 12553053), (19, 4624809), (21, 4184351), (57, 1541603), (67, 1311513), (133, 660687), (173, 507927), (201, 437171), (361, 243411), (399, 220229), (469, 187359), (519, 169309), (1083, 81137), (1211, 72561), (1273, 69027), (1407, 62453), (2527, 34773), (3287, 26733), (3633, 24187), (3819, 23009), (7581, 11591), (8911, 9861)]