81964911

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 127909888

約数和(自身を除く): 45944977

約数列:

[1, 3, 7, 21, 73, 127, 219, 381, 421, 511, 889, 1263, 1533, 2667, 2947, 8841, 9271, 27813, 30733, 53467, 64897, 92199, 160401, 194691, 215131, 374269, 645393, 1122807, 3903091, 11709273, 27321637, 81964911]

約数ペア:

[(1, 81964911), (3, 27321637), (7, 11709273), (21, 3903091), (73, 1122807), (127, 645393), (219, 374269), (381, 215131), (421, 194691), (511, 160401), (889, 92199), (1263, 64897), (1533, 53467), (2667, 30733), (2947, 27813), (8841, 9271)]