261121788

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{381757}}^1$

素因数の和:381786

約数の個数: 36

約数和(自身を含む): 694799560

約数和(自身を除く): 433677772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 381757, 763514, 1145271, 1527028, 2290542, 3435813, 4581084, 6871626, 7253383, 13743252, 14506766, 21760149, 29013532, 43520298, 65280447, 87040596, 130560894, 261121788]

約数ペア:

[(1, 261121788), (2, 130560894), (3, 87040596), (4, 65280447), (6, 43520298), (9, 29013532), (12, 21760149), (18, 14506766), (19, 13743252), (36, 7253383), (38, 6871626), (57, 4581084), (76, 3435813), (114, 2290542), (171, 1527028), (228, 1145271), (342, 763514), (684, 381757)]