20400633

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{461}}^1$

素因数の和:630

約数の個数: 32

約数和(自身を含む): 33264000

約数和(自身を除く): 12863367

約数列:

[1, 3, 9, 11, 27, 33, 99, 149, 297, 447, 461, 1341, 1383, 1639, 4023, 4149, 4917, 5071, 12447, 14751, 15213, 44253, 45639, 68689, 136917, 206067, 618201, 755579, 1854603, 2266737, 6800211, 20400633]

約数ペア:

[(1, 20400633), (3, 6800211), (9, 2266737), (11, 1854603), (27, 755579), (33, 618201), (99, 206067), (149, 136917), (297, 68689), (447, 45639), (461, 44253), (1341, 15213), (1383, 14751), (1639, 12447), (4023, 5071), (4149, 4917)]