172680921

素因数分解:

$3^2\times 7^1\times {\mathrm{1619}}^1\times {\mathrm{1693}}^1$

素因数の和:3325

約数の個数: 24

約数和(自身を含む): 285405120

約数和(自身を除く): 112724199

約数列:

[1, 3, 7, 9, 21, 63, 1619, 1693, 4857, 5079, 11333, 11851, 14571, 15237, 33999, 35553, 101997, 106659, 2740967, 8222901, 19186769, 24668703, 57560307, 172680921]

約数ペア:

[(1, 172680921), (3, 57560307), (7, 24668703), (9, 19186769), (21, 8222901), (63, 2740967), (1619, 106659), (1693, 101997), (4857, 35553), (5079, 33999), (11333, 15237), (11851, 14571)]