156991618

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{1223}}^1$

素因数の和:1458

約数の個数: 32

約数和(自身を含む): 276016896

約数和(自身を除く): 119025278

約数列:

[1, 2, 7, 14, 53, 106, 173, 346, 371, 742, 1211, 1223, 2422, 2446, 8561, 9169, 17122, 18338, 64183, 64819, 128366, 129638, 211579, 423158, 453733, 907466, 1481053, 2962106, 11213687, 22427374, 78495809, 156991618]

約数ペア:

[(1, 156991618), (2, 78495809), (7, 22427374), (14, 11213687), (53, 2962106), (106, 1481053), (173, 907466), (346, 453733), (371, 423158), (742, 211579), (1211, 129638), (1223, 128366), (2422, 64819), (2446, 64183), (8561, 18338), (9169, 17122)]