78383403

素因数分解:

$3^3\times 7^1\times {\mathrm{641}}^1\times {\mathrm{647}}^1$

素因数の和:1304

約数の個数: 32

約数和(自身を含む): 133125120

約数和(自身を除く): 54741717

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 641, 647, 1923, 1941, 4487, 4529, 5769, 5823, 13461, 13587, 17307, 17469, 40383, 40761, 121149, 122283, 414727, 1244181, 2903089, 3732543, 8709267, 11197629, 26127801, 78383403]

約数ペア:

[(1, 78383403), (3, 26127801), (7, 11197629), (9, 8709267), (21, 3732543), (27, 2903089), (63, 1244181), (189, 414727), (641, 122283), (647, 121149), (1923, 40761), (1941, 40383), (4487, 17469), (4529, 17307), (5769, 13587), (5823, 13461)]