21370291185

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{784087}}^1$

素因数の和:784197

約数の個数: 32

約数和(自身を含む): 36130775040

約数和(自身を除く): 14760483855

約数列:

[1, 3, 5, 15, 23, 69, 79, 115, 237, 345, 395, 1185, 1817, 5451, 9085, 27255, 784087, 2352261, 3920435, 11761305, 18034001, 54102003, 61942873, 90170005, 185828619, 270510015, 309714365, 929143095, 1424686079, 4274058237, 7123430395, 21370291185]

約数ペア:

[(1, 21370291185), (3, 7123430395), (5, 4274058237), (15, 1424686079), (23, 929143095), (69, 309714365), (79, 270510015), (115, 185828619), (237, 90170005), (345, 61942873), (395, 54102003), (1185, 18034001), (1817, 11761305), (5451, 3920435), (9085, 2352261), (27255, 784087)]