42505641

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:491

約数の個数: 40

約数和(自身を含む): 67953600

約数和(自身を除く): 25447959

約数列:

[1, 3, 9, 19, 27, 57, 71, 81, 171, 213, 389, 513, 639, 1167, 1349, 1539, 1917, 3501, 4047, 5751, 7391, 10503, 12141, 22173, 27619, 31509, 36423, 66519, 82857, 109269, 199557, 248571, 524761, 598671, 745713, 1574283, 2237139, 4722849, 14168547, 42505641]

約数ペア:

[(1, 42505641), (3, 14168547), (9, 4722849), (19, 2237139), (27, 1574283), (57, 745713), (71, 598671), (81, 524761), (171, 248571), (213, 199557), (389, 109269), (513, 82857), (639, 66519), (1167, 36423), (1349, 31509), (1539, 27619), (1917, 22173), (3501, 12141), (4047, 10503), (5751, 7391)]