199418877

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:583

約数の個数: 72

約数和(自身を含む): 358525440

約数和(自身を除く): 159106563

約数列:

[1, 3, 7, 9, 21, 29, 31, 49, 63, 87, 93, 147, 203, 217, 261, 279, 441, 503, 609, 651, 899, 1421, 1509, 1519, 1827, 1953, 2697, 3521, 4263, 4527, 4557, 6293, 8091, 10563, 12789, 13671, 14587, 15593, 18879, 24647, 31689, 43761, 44051, 46779, 56637, 73941, 102109, 109151, 131283, 132153, 140337, 221823, 306327, 327453, 396459, 452197, 714763, 764057, 918981, 982359, 1356591, 2144289, 2292171, 3165379, 4069773, 6432867, 6876513, 9496137, 22157653, 28488411, 66472959, 199418877]

約数ペア:

[(1, 199418877), (3, 66472959), (7, 28488411), (9, 22157653), (21, 9496137), (29, 6876513), (31, 6432867), (49, 4069773), (63, 3165379), (87, 2292171), (93, 2144289), (147, 1356591), (203, 982359), (217, 918981), (261, 764057), (279, 714763), (441, 452197), (503, 396459), (609, 327453), (651, 306327), (899, 221823), (1421, 140337), (1509, 132153), (1519, 131283), (1827, 109151), (1953, 102109), (2697, 73941), (3521, 56637), (4263, 46779), (4527, 44051), (4557, 43761), (6293, 31689), (8091, 24647), (10563, 18879), (12789, 15593), (13671, 14587)]