78421971

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 112121856

約数和(自身を除く): 33699885

約数列:

[1, 3, 31, 41, 93, 123, 131, 157, 393, 471, 1271, 3813, 4061, 4867, 5371, 6437, 12183, 14601, 16113, 19311, 20567, 61701, 166501, 199547, 499503, 598641, 637577, 843247, 1912731, 2529741, 26140657, 78421971]

約数ペア:

[(1, 78421971), (3, 26140657), (31, 2529741), (41, 1912731), (93, 843247), (123, 637577), (131, 598641), (157, 499503), (393, 199547), (471, 166501), (1271, 61701), (3813, 20567), (4061, 19311), (4867, 16113), (5371, 14601), (6437, 12183)]