1900984743

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:757

約数の個数: 72

約数和(自身を含む): 3274745760

約数和(自身を除く): 1373761017

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 109, 147, 213, 327, 441, 497, 557, 639, 763, 981, 1491, 1671, 2289, 3479, 3899, 4473, 5013, 5341, 6867, 7739, 10437, 11697, 16023, 23217, 27293, 31311, 35091, 39547, 48069, 54173, 60713, 69651, 81879, 118641, 162519, 182139, 245637, 276829, 355923, 379211, 424991, 487557, 546417, 830487, 1137633, 1274973, 1937803, 2491461, 2974937, 3412899, 3824919, 4310623, 5813409, 8924811, 12931869, 17440227, 26774433, 30174361, 38795607, 90523083, 211220527, 271569249, 633661581, 1900984743]

約数ペア:

[(1, 1900984743), (3, 633661581), (7, 271569249), (9, 211220527), (21, 90523083), (49, 38795607), (63, 30174361), (71, 26774433), (109, 17440227), (147, 12931869), (213, 8924811), (327, 5813409), (441, 4310623), (497, 3824919), (557, 3412899), (639, 2974937), (763, 2491461), (981, 1937803), (1491, 1274973), (1671, 1137633), (2289, 830487), (3479, 546417), (3899, 487557), (4473, 424991), (5013, 379211), (5341, 355923), (6867, 276829), (7739, 245637), (10437, 182139), (11697, 162519), (16023, 118641), (23217, 81879), (27293, 69651), (31311, 60713), (35091, 54173), (39547, 48069)]