20931496376

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19672459}}^1$

素因数の和:19672491

約数の個数: 32

約数和(自身を含む): 47213904000

約数和(自身を除く): 26282407624

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19672459, 39344918, 78689836, 137707213, 157379672, 275414426, 373776721, 550828852, 747553442, 1101657704, 1495106884, 2616437047, 2990213768, 5232874094, 10465748188, 20931496376]

約数ペア:

[(1, 20931496376), (2, 10465748188), (4, 5232874094), (7, 2990213768), (8, 2616437047), (14, 1495106884), (19, 1101657704), (28, 747553442), (38, 550828852), (56, 373776721), (76, 275414426), (133, 157379672), (152, 137707213), (266, 78689836), (532, 39344918), (1064, 19672459)]