87913791

素因数分解:

$3^2\times 7^2\times {\mathrm{311}}^1\times {\mathrm{641}}^1$

素因数の和:972

約数の個数: 36

約数和(自身を含む): 148425264

約数和(自身を除く): 60511473

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 311, 441, 641, 933, 1923, 2177, 2799, 4487, 5769, 6531, 13461, 15239, 19593, 31409, 40383, 45717, 94227, 137151, 199351, 282681, 598053, 1395457, 1794159, 4186371, 9768199, 12559113, 29304597, 87913791]

約数ペア:

[(1, 87913791), (3, 29304597), (7, 12559113), (9, 9768199), (21, 4186371), (49, 1794159), (63, 1395457), (147, 598053), (311, 282681), (441, 199351), (641, 137151), (933, 94227), (1923, 45717), (2177, 40383), (2799, 31409), (4487, 19593), (5769, 15239), (6531, 13461)]