18877029129

素因数分解:

$3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{421}}^1\times {\mathrm{1811}}^1$

素因数の和:2379

約数の個数: 64

約数和(自身を含む): 32299407360

約数和(自身を除く): 13422378231

約数列:

[1, 3, 7, 9, 21, 27, 63, 131, 189, 393, 421, 917, 1179, 1263, 1811, 2751, 2947, 3537, 3789, 5433, 8253, 8841, 11367, 12677, 16299, 24759, 26523, 38031, 48897, 55151, 79569, 114093, 165453, 237241, 342279, 386057, 496359, 711723, 762431, 1158171, 1489077, 1660687, 2135169, 2287293, 3474513, 4982061, 5337017, 6405507, 6861879, 10423539, 14946183, 16011051, 20585637, 44838549, 48033153, 99878461, 144099459, 299635383, 699149227, 898906149, 2097447681, 2696718447, 6292343043, 18877029129]

約数ペア:

[(1, 18877029129), (3, 6292343043), (7, 2696718447), (9, 2097447681), (21, 898906149), (27, 699149227), (63, 299635383), (131, 144099459), (189, 99878461), (393, 48033153), (421, 44838549), (917, 20585637), (1179, 16011051), (1263, 14946183), (1811, 10423539), (2751, 6861879), (2947, 6405507), (3537, 5337017), (3789, 4982061), (5433, 3474513), (8253, 2287293), (8841, 2135169), (11367, 1660687), (12677, 1489077), (16299, 1158171), (24759, 762431), (26523, 711723), (38031, 496359), (48897, 386057), (55151, 342279), (79569, 237241), (114093, 165453)]