201521055

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{15787}}^1$

素因数の和:15855

約数の個数: 32

約数和(自身を含む): 345567744

約数和(自身を除く): 144046689

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 2553, 4255, 12765, 15787, 47361, 78935, 236805, 363101, 584119, 1089303, 1752357, 1815505, 2920595, 5446515, 8761785, 13434737, 40304211, 67173685, 201521055]

約数ペア:

[(1, 201521055), (3, 67173685), (5, 40304211), (15, 13434737), (23, 8761785), (37, 5446515), (69, 2920595), (111, 1815505), (115, 1752357), (185, 1089303), (345, 584119), (555, 363101), (851, 236805), (2553, 78935), (4255, 47361), (12765, 15787)]