1278758271

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1\times {\mathrm{2351}}^1$

素因数の和:2859

約数の個数: 32

約数和(自身を含む): 1986969600

約数和(自身を除く): 708211329

約数列:

[1, 3, 7, 21, 59, 177, 413, 439, 1239, 1317, 2351, 3073, 7053, 9219, 16457, 25901, 49371, 77703, 138709, 181307, 416127, 543921, 970963, 1032089, 2912889, 3096267, 7224623, 21673869, 60893251, 182679753, 426252757, 1278758271]

約数ペア:

[(1, 1278758271), (3, 426252757), (7, 182679753), (21, 60893251), (59, 21673869), (177, 7224623), (413, 3096267), (439, 2912889), (1239, 1032089), (1317, 970963), (2351, 543921), (3073, 416127), (7053, 181307), (9219, 138709), (16457, 77703), (25901, 49371)]